diff --git a/crates/gpui2_macros/src/action.rs b/crates/gpui2_macros/src/action.rs
index abc75a875984842496c077f6e1841f5ec9915730..296e3f08b12b5fe0ede78d9ec1be0df96dd85735 100644
--- a/crates/gpui2_macros/src/action.rs
+++ b/crates/gpui2_macros/src/action.rs
@@ -38,6 +38,7 @@ pub fn action(input: TokenStream) -> TokenStream {
 
     let build_impl = if is_unit_struct {
         quote! {
+            let _ = value;
             Ok(std::boxed::Box::new(Self {}))
         }
     } else {