diff --git a/common/include/Utilities/Console.h b/common/include/Utilities/Console.h
index 8bff565ed8..a4fb75f686 100644
--- a/common/include/Utilities/Console.h
+++ b/common/include/Utilities/Console.h
@@ -122,10 +122,10 @@ struct IConsoleWriter
 	bool Warning( const wxChar* fmt, ... ) const;
 
 #if wxMAJOR_VERSION >= 3
-	bool WriteLn( ConsoleColors color, const wxString& fmt, ... ) const;
-	bool WriteLn( const wxString& fmt, ... ) const;
-	bool Error( const wxString& fmt, ... ) const;
-	bool Warning( const wxString& fmt, ... ) const;
+	bool WriteLn( ConsoleColors color, const wxString fmt, ... ) const;
+	bool WriteLn( const wxString fmt, ... ) const;
+	bool Error( const wxString fmt, ... ) const;
+	bool Warning( const wxString fmt, ... ) const;
 #endif
 };
 
@@ -164,10 +164,10 @@ struct NullConsoleWriter
 	bool Warning( const wxChar* fmt, ... ) const					{ return false; }
 
 #if wxMAJOR_VERSION >= 3
-	bool WriteLn( ConsoleColors color, const wxString& fmt, ... ) const { return false; }
-	bool WriteLn( const wxString& fmt, ... ) const					{ return false; }
-	bool Error( const wxString& fmt, ... ) const					{ return false; }
-	bool Warning( const wxString& fmt, ... ) const					{ return false; }
+	bool WriteLn( ConsoleColors color, const wxString fmt, ... ) const { return false; }
+	bool WriteLn( const wxString fmt, ... ) const					{ return false; }
+	bool Error( const wxString fmt, ... ) const					{ return false; }
+	bool Warning( const wxString fmt, ... ) const					{ return false; }
 #endif
 };
 
diff --git a/common/include/Utilities/StringHelpers.h b/common/include/Utilities/StringHelpers.h
index b48bafb018..f3e19fb2d4 100644
--- a/common/include/Utilities/StringHelpers.h
+++ b/common/include/Utilities/StringHelpers.h
@@ -195,7 +195,7 @@ public:
 	FastFormatUnicode& Write( const char* fmt, ... );
 	FastFormatUnicode& Write( const wxChar* fmt, ... );
 #if wxMAJOR_VERSION >= 3
-	FastFormatUnicode& Write( const wxString& fmt, ... );
+	FastFormatUnicode& Write( const wxString fmt, ... );
 #endif
 	FastFormatUnicode& WriteV( const char* fmt, va_list argptr );
 	FastFormatUnicode& WriteV( const wxChar* fmt, va_list argptr );
diff --git a/common/include/Utilities/TraceLog.h b/common/include/Utilities/TraceLog.h
index 9a5c948d69..d727be9b41 100644
--- a/common/include/Utilities/TraceLog.h
+++ b/common/include/Utilities/TraceLog.h
@@ -194,7 +194,7 @@ public:
 	}
 
 #if wxMAJOR_VERSION >= 3
-	bool Write( const wxString& fmt, ... ) const
+	bool Write( const wxString fmt, ... ) const
 	{
 		va_list list;
 		va_start( list, fmt );
@@ -240,7 +240,7 @@ public:
 	}
 
 #if wxMAJOR_VERSION >= 3
-	bool Warn( const wxString& fmt, ... ) const
+	bool Warn( const wxString fmt, ... ) const
 	{
 		va_list list;
 		va_start( list, fmt );
@@ -264,7 +264,7 @@ public:
 	}
 
 #if wxMAJOR_VERSION >= 3
-	bool Error( const wxString& fmt, ... ) const
+	bool Error( const wxString fmt, ... ) const
 	{
 		va_list list;
 		va_start( list, fmt );
diff --git a/common/src/Utilities/Console.cpp b/common/src/Utilities/Console.cpp
index a431a829b6..7dc36552c0 100644
--- a/common/src/Utilities/Console.cpp
+++ b/common/src/Utilities/Console.cpp
@@ -472,7 +472,7 @@ bool IConsoleWriter::Warning( const wxChar* fmt, ... ) const
 // --------------------------------------------------------------------------------------
 //  Write Variants - Unknown style
 // --------------------------------------------------------------------------------------
-bool IConsoleWriter::WriteLn( const wxString& fmt, ... ) const
+bool IConsoleWriter::WriteLn( const wxString fmt, ... ) const
 {
 	va_list args;
 	va_start(args,fmt);
@@ -482,7 +482,7 @@ bool IConsoleWriter::WriteLn( const wxString& fmt, ... ) const
 	return false;
 }
 
-bool IConsoleWriter::WriteLn( ConsoleColors color, const wxString& fmt, ... ) const
+bool IConsoleWriter::WriteLn( ConsoleColors color, const wxString fmt, ... ) const
 {
 	va_list args;
 	va_start(args,fmt);
@@ -493,7 +493,7 @@ bool IConsoleWriter::WriteLn( ConsoleColors color, const wxString& fmt, ... ) co
 	return false;
 }
 
-bool IConsoleWriter::Error( const wxString& fmt, ... ) const
+bool IConsoleWriter::Error( const wxString fmt, ... ) const
 {
 	va_list args;
 	va_start(args,fmt);
@@ -504,7 +504,7 @@ bool IConsoleWriter::Error( const wxString& fmt, ... ) const
 	return false;
 }
 
-bool IConsoleWriter::Warning( const wxString& fmt, ... ) const
+bool IConsoleWriter::Warning( const wxString fmt, ... ) const
 {
 	va_list args;
 	va_start(args,fmt);
diff --git a/common/src/Utilities/FastFormatString.cpp b/common/src/Utilities/FastFormatString.cpp
index 95cccfc7ba..4b7ccd6dd2 100644
--- a/common/src/Utilities/FastFormatString.cpp
+++ b/common/src/Utilities/FastFormatString.cpp
@@ -296,7 +296,7 @@ FastFormatUnicode& FastFormatUnicode::Write( const wxChar* fmt, ... )
 }
 
 #if wxMAJOR_VERSION >= 3
-FastFormatUnicode& FastFormatUnicode::Write( const wxString& fmt, ... )
+FastFormatUnicode& FastFormatUnicode::Write( const wxString fmt, ... )
 {
 	va_list list;
 	va_start(list, fmt);