diff --git a/tests/tests/main.rs b/tests/tests/main.rs
index cb69755..80f0121 100644
--- a/tests/tests/main.rs
+++ b/tests/tests/main.rs
@@ -70,16 +70,21 @@ fn init_twice() {
     assert!(project.fuzz_target_path("fuzz_target_1").is_file());
 
     // Second init should fail.
+    #[cfg(not(target_family = "windows"))]
+    let expected_err = "File exists (os error 17)";
+    #[cfg(target_family = "windows")]
+    let expected_err = "Cannot create a file when that file already exists. (os error 183)";
+
     project
         .cargo_fuzz()
         .arg("init")
         .assert()
-        .stderr(predicates::str::contains("File exists (os error 17)").and(
-            predicates::str::contains(format!(
+        .stderr(
+            predicates::str::contains(expected_err).and(predicates::str::contains(format!(
                 "failed to create directory {}",
                 project.fuzz_dir().display()
-            )),
-        ))
+            ))),
+        )
         .failure();
 }
 
@@ -134,6 +139,12 @@ fn add_twice() {
         .assert()
         .success();
     assert!(project.fuzz_target_path("new_fuzz_target").is_file());
+
+    #[cfg(not(target_family = "windows"))]
+    let expected_err = "File exists (os error 17)";
+    #[cfg(target_family = "windows")]
+    let expected_err = "The file exists. (os error 80)";
+
     project
         .cargo_fuzz()
         .arg("add")
@@ -141,7 +152,7 @@ fn add_twice() {
         .assert()
         .stderr(
             predicate::str::contains("could not add target")
-                .and(predicate::str::contains("File exists (os error 17)")),
+                .and(predicate::str::contains(expected_err)),
         )
         .failure();
 }
diff --git a/tests/tests/project.rs b/tests/tests/project.rs
index f9abbf7..53822c6 100644
--- a/tests/tests/project.rs
+++ b/tests/tests/project.rs
@@ -4,6 +4,7 @@ use std::io::Write;
 use std::path::{Path, PathBuf};
 use std::process::Command;
 use std::sync::atomic::{AtomicUsize, Ordering::SeqCst};
+use toml;
 
 pub fn target_tests() -> PathBuf {
     let mut path = env::current_exe().unwrap();
@@ -107,12 +108,12 @@ impl ProjectBuilder {
             r#"
                 [[bin]]
                 name = "{name}"
-                path = "{path}"
+                path = {path}
                 test = false
                 doc = false
             "#,
             name = name,
-            path = path.display(),
+            path = toml::to_string(&path).unwrap(),
         )
         .unwrap();