diff --git a/sdk/rust/crates/dagger-codegen/src/rust/format.rs b/sdk/rust/crates/dagger-codegen/src/rust/format.rs
index 3f4c70a86a0..648ac1bf5b3 100644
--- a/sdk/rust/crates/dagger-codegen/src/rust/format.rs
+++ b/sdk/rust/crates/dagger-codegen/src/rust/format.rs
@@ -27,7 +27,7 @@ impl FormatTypeFuncs for FormatTypeFunc {
 
     fn format_kind_scalar_float(&self, representation: &str) -> String {
         let mut rep = representation.to_string();
-        rep.push_str("float");
+        rep.push_str("f64");
         rep
     }