ext/fiddle/function.c in fiddle-1.1.4 vs ext/fiddle/function.c in fiddle-1.1.5

@@ -152,10 +152,12 @@
         }
         rb_get_kwargs(kwargs, kw, 0, kw_max_, args);
         if (args[kw_name] != Qundef) {
             name = args[kw_name];
 #ifdef HAVE_RB_STR_TO_INTERNED_STR
-            name = rb_str_to_interned_str(name);
+            if (RB_TYPE_P(name, RUBY_T_STRING)) {
+              name = rb_str_to_interned_str(name);
+            }
 #endif
         }
         if (args[kw_need_gvl] != Qundef) {
             need_gvl = args[kw_need_gvl];
         }