diff --git a/src/module_writer.rs b/src/module_writer.rs
index ffb8cd6cc..2c9a866a5 100644
--- a/src/module_writer.rs
+++ b/src/module_writer.rs
@@ -918,13 +918,6 @@ fn generate_uniffi_bindings(
         false
     };
 
-    // Disallow library mode without UDL files for now
-    // Should be removed in https://github.com/PyO3/maturin/pull/1729
-    // once uniffi release a new version
-    if is_library {
-        bail!("No UDL files found in {}", crate_dir.join("src").display());
-    }
-
     let mut cmd = uniffi_bindgen_command(crate_dir)?;
     cmd.current_dir(crate_dir);
     cmd.args([
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new file mode 100644
index 000000000..7cc6025c7
--- /dev/null
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+version = "0.24.1"
+source = "git+https://github.com/mozilla/uniffi-rs.git?branch=main#5598e0b6070eabc74cc1a3c8cafedd592e4a569f"
+dependencies = [
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "uniffi_core"
+version = "0.24.1"
+source = "git+https://github.com/mozilla/uniffi-rs.git?branch=main#5598e0b6070eabc74cc1a3c8cafedd592e4a569f"
+dependencies = [
+ "anyhow",
+ "bytes",
+ "camino",
+ "cargo_metadata",
+ "log",
+ "once_cell",
+ "paste",
+ "static_assertions",
+]
+
+[[package]]
+name = "uniffi_macros"
+version = "0.24.1"
+source = "git+https://github.com/mozilla/uniffi-rs.git?branch=main#5598e0b6070eabc74cc1a3c8cafedd592e4a569f"
+dependencies = [
+ "bincode",
+ "camino",
+ "fs-err",
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "serde",
+ "syn",
+ "toml",
+ "uniffi_build",
+ "uniffi_meta",
+]
+
+[[package]]
+name = "uniffi_meta"
+version = "0.24.1"
+source = "git+https://github.com/mozilla/uniffi-rs.git?branch=main#5598e0b6070eabc74cc1a3c8cafedd592e4a569f"
+dependencies = [
+ "anyhow",
+ "bytes",
+ "serde",
+ "siphasher",
+ "uniffi_checksum_derive",
+]
+
+[[package]]
+name = "uniffi_testing"
+version = "0.24.1"
+source = "git+https://github.com/mozilla/uniffi-rs.git?branch=main#5598e0b6070eabc74cc1a3c8cafedd592e4a569f"
+dependencies = [
+ "anyhow",
+ "camino",
+ "cargo_metadata",
+ "fs-err",
+ "once_cell",
+ "serde",
+ "serde_json",
+]
+
+[[package]]
+name = "uniffi_udl"
+version = "0.24.1"
+source = "git+https://github.com/mozilla/uniffi-rs.git?branch=main#5598e0b6070eabc74cc1a3c8cafedd592e4a569f"
+dependencies = [
+ "anyhow",
+ "uniffi_meta",
+ "uniffi_testing",
+ "weedle2",
+]
+
+[[package]]
+name = "utf8parse"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
+
+[[package]]
+name = "version_check"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
+
+[[package]]
+name = "weedle2"
+version = "4.0.0"
+source = "git+https://github.com/mozilla/uniffi-rs.git?branch=main#5598e0b6070eabc74cc1a3c8cafedd592e4a569f"
+dependencies = [
+ "nom",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
+dependencies = [
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.48.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05d4b17490f70499f20b9e791dcf6a299785ce8af4d709018206dc5b4953e95f"
+dependencies = [
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91ae572e1b79dba883e0d315474df7305d12f569b400fcf90581b06062f7e1bc"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2ef27e0d7bdfcfc7b868b317c1d32c641a6fe4629c171b8928c7b08d98d7cf3"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "622a1962a7db830d6fd0a69683c80a18fda201879f0f447f065a3b7467daa241"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4542c6e364ce21bf45d69fdd2a8e455fa38d316158cfd43b3ac1c5b1b19f8e00"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca2b8a661f7628cbd23440e50b05d705db3686f894fc9580820623656af974b1"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7896dbc1f41e08872e9d5e8f8baa8fdd2677f29468c4e156210174edc7f7b953"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
diff --git a/test-crates/uniffi-pure-proc-macro/Cargo.toml b/test-crates/uniffi-pure-proc-macro/Cargo.toml
new file mode 100644
index 000000000..6718742fc
--- /dev/null
+++ b/test-crates/uniffi-pure-proc-macro/Cargo.toml
@@ -0,0 +1,20 @@
+[package]
+name = "uniffi-pure-proc-macro"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[lib]
+name = "uniffi_pure_proc_macro"
+crate-type = ["cdylib"]
+
+[[bin]]
+name = "uniffi-bindgen"
+path = "uniffi-bindgen.rs"
+
+[dependencies]
+uniffi = { git = "https://github.com/mozilla/uniffi-rs.git", branch = "main", features = ["cli"] }
+
+[build-dependencies]
+uniffi = { git = "https://github.com/mozilla/uniffi-rs.git", branch = "main", features = ["build"] }
\ No newline at end of file
diff --git a/test-crates/uniffi-pure-proc-macro/check_installed/check_installed.py b/test-crates/uniffi-pure-proc-macro/check_installed/check_installed.py
new file mode 100644
index 000000000..c0db80f9a
--- /dev/null
+++ b/test-crates/uniffi-pure-proc-macro/check_installed/check_installed.py
@@ -0,0 +1,7 @@
+#!/usr/bin/env python3
+
+import uniffi_pure_proc_macro as uniffi_pure
+
+assert uniffi_pure.add(1, 2) == 3
+
+print("SUCCESS")
diff --git a/test-crates/uniffi-pure-proc-macro/pyproject.toml b/test-crates/uniffi-pure-proc-macro/pyproject.toml
new file mode 100644
index 000000000..549f0616c
--- /dev/null
+++ b/test-crates/uniffi-pure-proc-macro/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["maturin>=1.0,<2.0"]
+build-backend = "maturin"
\ No newline at end of file
diff --git a/test-crates/uniffi-pure-proc-macro/src/lib.rs b/test-crates/uniffi-pure-proc-macro/src/lib.rs
new file mode 100644
index 000000000..aef88a348
--- /dev/null
+++ b/test-crates/uniffi-pure-proc-macro/src/lib.rs
@@ -0,0 +1,6 @@
+#[uniffi::export]
+fn add(a: u32, b: u32) -> u32 {
+    a + b
+}
+
+uniffi::setup_scaffolding!();
diff --git a/test-crates/uniffi-pure-proc-macro/test_uniffi_pure.py b/test-crates/uniffi-pure-proc-macro/test_uniffi_pure.py
new file mode 100644
index 000000000..f6709f52f
--- /dev/null
+++ b/test-crates/uniffi-pure-proc-macro/test_uniffi_pure.py
@@ -0,0 +1,5 @@
+import uniffi_pure_proc_macro as uniffi_pure
+
+
+def test_add():
+    assert uniffi_pure.add(1, 2) == 3
diff --git a/test-crates/uniffi-pure-proc-macro/uniffi-bindgen.rs b/test-crates/uniffi-pure-proc-macro/uniffi-bindgen.rs
new file mode 100644
index 000000000..f6cff6cf1
--- /dev/null
+++ b/test-crates/uniffi-pure-proc-macro/uniffi-bindgen.rs
@@ -0,0 +1,3 @@
+fn main() {
+    uniffi::uniffi_bindgen_main()
+}
diff --git a/test-crates/uniffi-pure-proc-macro/uniffi.toml b/test-crates/uniffi-pure-proc-macro/uniffi.toml
new file mode 100644
index 000000000..86f350f53
--- /dev/null
+++ b/test-crates/uniffi-pure-proc-macro/uniffi.toml
@@ -0,0 +1,2 @@
+[bindings.python]
+cdylib_name = "example"
diff --git a/tests/run.rs b/tests/run.rs
index 4594a0915..f0e87078a 100644
--- a/tests/run.rs
+++ b/tests/run.rs
@@ -129,6 +129,16 @@ fn develop_uniffi_pure() {
     }
 }
 
+#[test]
+fn develop_uniffi_pure_proc_macro() {
+    handle_result(develop::test_develop(
+        "test-crates/uniffi-pure-proc-macro",
+        None,
+        "develop-uniffi-pure-proc-macro",
+        false,
+    ));
+}
+
 #[test]
 fn develop_uniffi_mixed() {
     if env::var("GITHUB_ACTIONS").is_ok() || which("uniffi-bindgen").is_ok() {
@@ -306,6 +316,17 @@ fn integration_uniffi_pure() {
     }
 }
 
+#[test]
+fn integration_uniffi_pure_proc_macro() {
+    handle_result(integration::test_integration(
+        "test-crates/uniffi-pure-proc-macro",
+        None,
+        "integration-uniffi-pure-proc-macro",
+        false,
+        None,
+    ));
+}
+
 #[test]
 fn integration_uniffi_mixed() {
     if env::var("GITHUB_ACTIONS").is_ok() || which("uniffi-bindgen").is_ok() {