diff --git a/src/tools/rust-analyzer/crates/hir-expand/src/eager.rs b/src/tools/rust-analyzer/crates/hir-expand/src/eager.rs
index ef7200f615c..1e2722e8464 100644
--- a/src/tools/rust-analyzer/crates/hir-expand/src/eager.rs
+++ b/src/tools/rust-analyzer/crates/hir-expand/src/eager.rs
@@ -73,7 +73,7 @@ pub fn expand_eager_macro_input(
         )
     };
     let err = parse_err.or(err);
-    if cfg!(debug) {
+    if cfg!(debug_assertions) {
         arg_map.finish();
     }