diff --git a/tools/macosx/prefpane/English.lproj/fuse_ext2Pref.xib b/tools/macosx/prefpane/English.lproj/fuse_ext2Pref.xib
index 5c3429a17..0039457f9 100644
--- a/tools/macosx/prefpane/English.lproj/fuse_ext2Pref.xib
+++ b/tools/macosx/prefpane/English.lproj/fuse_ext2Pref.xib
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <archive type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="7.03">
 	<data>
-		<int key="IBDocument.SystemTarget">1050</int>
+		<int key="IBDocument.SystemTarget">1060</int>
 		<string key="IBDocument.SystemVersion">9L30</string>
 		<string key="IBDocument.InterfaceBuilderVersion">677</string>
 		<string key="IBDocument.AppKitVersion">949.54</string>
diff --git a/tools/macosx/prefpane/fuse-ext2.xcodeproj/project.pbxproj b/tools/macosx/prefpane/fuse-ext2.xcodeproj/project.pbxproj
index 09f39c5d4..ae4c12abe 100644
--- a/tools/macosx/prefpane/fuse-ext2.xcodeproj/project.pbxproj
+++ b/tools/macosx/prefpane/fuse-ext2.xcodeproj/project.pbxproj
@@ -252,6 +252,7 @@
 				INSTALL_PATH = "$(HOME)/Library/PreferencePanes";
 				PRODUCT_NAME = "fuse-ext2";
 				SDKROOT = macosx;
+				VALID_ARCHS = x86_64;
 				WRAPPER_EXTENSION = prefPane;
 				ZERO_LINK = YES;
 			};
@@ -270,6 +271,7 @@
 				INSTALL_PATH = "$(HOME)/Library/PreferencePanes";
 				PRODUCT_NAME = "fuse-ext2";
 				SDKROOT = macosx;
+				VALID_ARCHS = x86_64;
 				WRAPPER_EXTENSION = prefPane;
 			};
 			name = Release;