diff --git a/dlls/winemac.drv/Makefile.in b/dlls/winemac.drv/Makefile.in
index 41b2234c39a..e3e71c5f4cc 100644
--- a/dlls/winemac.drv/Makefile.in
+++ b/dlls/winemac.drv/Makefile.in
@@ -14,8 +14,17 @@ UNIX_LIBS    = \
 	-framework Security \
 	$(METAL_LIBS)
 
-C_SRCS = \
+SOURCES = \
 	clipboard.c \
+	cocoa_app.m \
+	cocoa_clipboard.m \
+	cocoa_cursorclipping.m \
+	cocoa_display.m \
+	cocoa_event.m \
+	cocoa_main.m \
+	cocoa_opengl.m \
+	cocoa_status_item.m \
+	cocoa_window.m \
 	display.c \
 	dllmain.c \
 	dragdrop.c \
@@ -29,17 +38,5 @@ C_SRCS = \
 	surface.c \
 	systray.c \
 	vulkan.c \
-	window.c
-
-OBJC_SRCS = \
-	cocoa_app.m \
-	cocoa_clipboard.m \
-	cocoa_cursorclipping.m \
-	cocoa_display.m \
-	cocoa_event.m \
-	cocoa_main.m \
-	cocoa_opengl.m \
-	cocoa_status_item.m \
-	cocoa_window.m
-
-RC_SRCS = winemac.rc
+	window.c \
+	winemac.rc
diff --git a/tools/make_makefiles b/tools/make_makefiles
index eebb02da691..5b263c58d24 100755
--- a/tools/make_makefiles
+++ b/tools/make_makefiles
@@ -338,12 +338,11 @@ sub assign_sources_to_makefiles(@)
         my $make = $makefiles{"$dir/Makefile.in"};
         my $name = substr( $file, length($dir) + 1 );
 
-        if ($name =~ /\.(mc|po)$/)
+        if ($name =~ /\.(m|mc|po)$/)
         {
             push @{${$make}{"=SOURCES"}}, $name;
             next;
         }
-        elsif ($name =~ /\.m$/) { push @{${$make}{"=OBJC_SRCS"}}, $name; }
         elsif ($name =~ /\.l$/) { push @{${$make}{"=LEX_SRCS"}}, $name; }
         elsif ($name =~ /\.y$/) { push @{${$make}{"=BISON_SRCS"}}, $name; }
         elsif ($name =~ /\.svg$/) { push @{${$make}{"=SVG_SRCS"}}, $name; }