diff --git a/pkg/apple/RetroArch_Metal.xcodeproj/project.pbxproj b/pkg/apple/RetroArch_Metal.xcodeproj/project.pbxproj
index 22157638d6..0d18848770 100644
--- a/pkg/apple/RetroArch_Metal.xcodeproj/project.pbxproj
+++ b/pkg/apple/RetroArch_Metal.xcodeproj/project.pbxproj
@@ -1751,6 +1751,7 @@
 					"-DHAVE_COCOA_METAL",
 					"-UHAVE_GLSL",
 					"-UHAVE_OPENGL",
+					"-DDONT_WANT_ARM_OPTIMIZATIONS",
 				);
 				OTHER_CODE_SIGN_FLAGS = "--deep --timestamp";
 				OTHER_CPLUSPLUSFLAGS = (
@@ -1786,6 +1787,7 @@
 					"-DHAVE_COCOA_METAL",
 					"-UHAVE_GLSL",
 					"-UHAVE_OPENGL",
+					"-DDONT_WANT_ARM_OPTIMIZATIONS",
 				);
 				OTHER_CODE_SIGN_FLAGS = "--deep --timestamp";
 				OTHER_CPLUSPLUSFLAGS = (