diff --git a/lib/checkother.cpp b/lib/checkother.cpp
index 45274bb2d..609c634a0 100644
--- a/lib/checkother.cpp
+++ b/lib/checkother.cpp
@@ -1976,7 +1976,7 @@ void CheckOther::checkConstantFunctionParameter()
         if (!var || !var->isArgument() || !var->isClass() || !var->isConst() || var->isPointer() || var->isArray() || var->isReference())
             continue;
 
-        if (var->scope()->function->arg->link()->strAt(-1) == ".")
+        if (var->scope() && var->scope()->function->arg->link()->strAt(-1) == ".")
             continue; // references could not be used as va_start parameters (#5824)
 
         const Token* const tok = var->typeStartToken();
diff --git a/test/testassert.cpp b/test/testassert.cpp
index d4ce144a7..a28733645 100644
--- a/test/testassert.cpp
+++ b/test/testassert.cpp
@@ -35,10 +35,7 @@ private:
         errout.str("");
 
         Settings settings;
-        settings.addEnabled("style");
         settings.addEnabled("warning");
-        settings.addEnabled("portability");
-        settings.addEnabled("performance");
 
         // Tokenize..
         Tokenizer tokenizer(&settings, this);