diff --git a/samples/minimal/minimal.xcodeproj/project.pbxproj b/samples/minimal/minimal.xcodeproj/project.pbxproj
index c072a08309..a36f068875 100644
--- a/samples/minimal/minimal.xcodeproj/project.pbxproj
+++ b/samples/minimal/minimal.xcodeproj/project.pbxproj
@@ -466,6 +466,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				ARCHS = "$(NATIVE_ARCH)";
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = ../../include/wx/wxprec.h;
 				GCC_PREPROCESSOR_DEFINITIONS = (
diff --git a/src/wxWindows.xcodeproj/project.pbxproj b/src/wxWindows.xcodeproj/project.pbxproj
index 908666280d..ac0755cee9 100644
--- a/src/wxWindows.xcodeproj/project.pbxproj
+++ b/src/wxWindows.xcodeproj/project.pbxproj
@@ -4568,10 +4568,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				ARCHS = (
-					i386,
-					ppc,
-				);
+				ARCHS = "$(NATIVE_ARCH)";
 				DEBUG_INFORMATION_FORMAT = stabs;
 				DYLIB_COMPATIBILITY_VERSION = 2.6;
 				DYLIB_CURRENT_VERSION = 2.6.0;