diff --git a/ets2panda/checker/ets/function_helpers.h b/ets2panda/checker/ets/function_helpers.h
index a4b7e1d091fb53b079bf33bf55dfd1411c37e93b..bf59b130680cc1208c5eb96283ef46f9ee0145fd 100644
--- a/ets2panda/checker/ets/function_helpers.h
+++ b/ets2panda/checker/ets/function_helpers.h
@@ -163,7 +163,9 @@ static bool CmpAssemblerTypesWithRank(Signature *sig1, Signature *sig2)
         sig2->Params()[ix]->TsType()->ToAssemblerTypeWithRank(s2);
         if (s1.str() != s2.str()) {
             return false;
-            break;
+        }
+        if (sig1->Params()[ix]->TsType()->TypeFlags() != sig2->Params()[ix]->TsType()->TypeFlags()) {
+            return false;
         }
     }
     return true;