diff --git a/hugr-core/src/builder/circuit.rs b/hugr-core/src/builder/circuit.rs
index 22475cb03..2fecff49d 100644
--- a/hugr-core/src/builder/circuit.rs
+++ b/hugr-core/src/builder/circuit.rs
@@ -258,10 +258,6 @@ mod test {
     };
 
     #[test]
-    #[cfg_attr(
-        feature = "extension_inference",
-        ignore = "Extension validation fails when mixing in the float extension"
-    )]
     fn simple_linear() {
         let build_res = build_main(
             FunctionType::new(type_row![QB, QB], type_row![QB, QB])