diff --git a/common/winexe.cpp b/common/winexe.cpp
index de53ae64907..ea96cee4a0d 100644
--- a/common/winexe.cpp
+++ b/common/winexe.cpp
@@ -28,8 +28,8 @@
 
 namespace Common {
 
-WinResourceID &WinResourceID::operator=(String string) {
-	_name = string;
+WinResourceID &WinResourceID::operator=(const String &x) {
+	_name = x;
 	_idType = kIDTypeString;
 	return *this;
 }
diff --git a/common/winexe.h b/common/winexe.h
index 3567a037e16..af0d70c5550 100644
--- a/common/winexe.h
+++ b/common/winexe.h
@@ -38,7 +38,7 @@ public:
 	WinResourceID(String x) { _idType = kIDTypeString; _name = x; }
 	WinResourceID(uint32 x) { _idType = kIDTypeNumerical; _id = x; }
 
-	WinResourceID &operator=(String string);
+	WinResourceID &operator=(const String &x);
 	WinResourceID &operator=(uint32 x);
 
 	bool operator==(const String &x) const;