diff --git a/lib/symboldatabase.cpp b/lib/symboldatabase.cpp
index 88254fb3c..ac8a79d1e 100644
--- a/lib/symboldatabase.cpp
+++ b/lib/symboldatabase.cpp
@@ -1389,8 +1389,7 @@ bool SymbolDatabase::isFunction(const Token *tok, const Scope* outerScope, const
 
     // regular function?
     else if (Token::Match(tok, "%name% (") && !isReservedName(tok->str()) && tok->previous() &&
-             (tok->previous()->isName() || tok->strAt(-1) == ">" || tok->strAt(-1) == "&" || tok->strAt(-1) == "*" || // Either a return type in front of tok
-              tok->strAt(-1) == "::" || tok->strAt(-1) == "~" || // or a scope qualifier in front of tok
+             (Token::Match(tok->previous(), "%name%|>|&|*|::|~") || // Either a return type or scope qualifier in front of tok
               outerScope->isClassOrStruct())) { // or a ctor/dtor
         const Token* tok1 = tok->previous();
         const Token* tok2 = tok->next()->link()->next();