diff --git a/lib/checkfunctions.cpp b/lib/checkfunctions.cpp
index a668aef10..5236bb252 100644
--- a/lib/checkfunctions.cpp
+++ b/lib/checkfunctions.cpp
@@ -130,7 +130,7 @@ void CheckFunctions::invalidFunctionUsage()
                     if (Token::Match(argtok, "& %var% !![") && argtok->next() && argtok->next()->valueType()) {
                         const ValueType * valueType = argtok->next()->valueType();
                         const Variable * variable = argtok->next()->variable();
-                        if ((valueType->type == ValueType::Type::CHAR || (valueType->type == ValueType::Type::RECORD && Token::Match(argtok, "& %var% . %var% ,|)"))) &&
+                        if ((valueType->type == ValueType::Type::CHAR || valueType->type == ValueType::Type::WCHAR_T || (valueType->type == ValueType::Type::RECORD && Token::Match(argtok, "& %var% . %var% ,|)"))) &&
                             !variable->isArray() &&
                             (variable->isConst() || !variable->isGlobal()) &&
                             (!argtok->next()->hasKnownValue() || argtok->next()->getValue(0) == nullptr)) {
diff --git a/test/testfunctions.cpp b/test/testfunctions.cpp
index 0e7dd65a8..dbe03e526 100644
--- a/test/testfunctions.cpp
+++ b/test/testfunctions.cpp
@@ -745,6 +745,9 @@ private:
               "    s[strlen(s)] = ' ';\n"
               "}\n");
         ASSERT_EQUALS("", errout.str());
+
+        check("size_t f() { wchar_t x = L'x'; return wcslen(&x); }");
+        ASSERT_EQUALS("[test.cpp:1]: (error) Invalid wcslen() argument nr 1. A nul-terminated string is required.\n", errout.str());
     }
 
     void mathfunctionCall_sqrt() {