1 files changed, 1 insertions, 1 deletions
diff --git a/struct.c b/struct.c
index 82ea5ef4..956506d2 100644
--- a/struct.c
+++ b/struct.c
@@ -433,7 +433,7 @@ val find_struct_type(val sym)
 
 val struct_type_p(val obj)
 {
-  return tnil(typeof(obj) == struct_type_s);
+  return cobjclassp(obj, struct_type_s);
 }
 
 val struct_get_initfun(val type)