diff --git a/reactos/lib/3rdparty/mingw/main.c b/reactos/lib/3rdparty/mingw/main.c
index f53ef06a606..d3d94571137 100644
--- a/reactos/lib/3rdparty/mingw/main.c
+++ b/reactos/lib/3rdparty/mingw/main.c
@@ -20,7 +20,7 @@ extern int PASCAL WinMain (HINSTANCE hInst, HINSTANCE hPrevInst,
                            LPSTR szCmdLine, int nShow);
 
 int
-main (int argc, const char *argv[], const char *environ[])
+main (int argc, const char *argv[])
 {
   char *szCmd;
   STARTUPINFO startinfo;
diff --git a/reactos/tools/rbuild/backend/mingw/modulehandler.cpp b/reactos/tools/rbuild/backend/mingw/modulehandler.cpp
index f6cfb0a7815..6e367c75f46 100644
--- a/reactos/tools/rbuild/backend/mingw/modulehandler.cpp
+++ b/reactos/tools/rbuild/backend/mingw/modulehandler.cpp
@@ -2009,16 +2009,6 @@ MingwModuleHandler::GenerateOtherMacros ()
 		          linkerflags );
 	}
 
-	if ( IsStaticLibrary ( module ) && module.isStartupLib )
-	{
-		fprintf ( fMakefile,
-		          "%s += -Wno-main\n\n",
-		          cflagsMacro.c_str () );
-		fprintf ( fMakefile,
-		          "%s += -Wno-main\n\n",
-		          cxxflagsMacro.c_str () );
-	}
-
 	fprintf ( fMakefile, "\n\n" );
 
 	// future references to the macros will be to get their values