diff --git a/Xcode/stepmania.xcodeproj/project.pbxproj b/Xcode/stepmania.xcodeproj/project.pbxproj
index ebca7b9c69..6c1dd1a4f5 100644
--- a/Xcode/stepmania.xcodeproj/project.pbxproj
+++ b/Xcode/stepmania.xcodeproj/project.pbxproj
@@ -7285,6 +7285,7 @@
 				ONLY_LINK_ESSENTIAL_SYMBOLS = YES;
 				PREBINDING = NO;
 				PRESERVE_DEAD_CODE_INITS_AND_TERMS = YES;
+				SDKROOT = macosx10.5;
 				SDKROOT_i386 = /Developer/SDKs/MacOSX10.5.sdk;
 				SDKROOT_ppc = /Developer/SDKs/MacOSX10.3.9.sdk;
 				SHARED_PRECOMPS_DIR = "/Library/Caches/com.apple.Xcode.$(UID)/SharedPrecompiledHeaders/$(PRODUCT_NAME)/$(CONFIGURATION)";
@@ -7822,6 +7823,7 @@
 				ONLY_LINK_ESSENTIAL_SYMBOLS = YES;
 				PREBINDING = NO;
 				PRESERVE_DEAD_CODE_INITS_AND_TERMS = YES;
+				SDKROOT = macosx10.5;
 				SDKROOT_i386 = /Developer/SDKs/MacOSX10.5.sdk;
 				SDKROOT_ppc = /Developer/SDKs/MacOSX10.3.9.sdk;
 				SHARED_PRECOMPS_DIR = "/Library/Caches/com.apple.Xcode.$(UID)/SharedPrecompiledHeaders/$(PRODUCT_NAME)/$(CONFIGURATION)";
@@ -8158,6 +8160,7 @@
 				ONLY_LINK_ESSENTIAL_SYMBOLS = YES;
 				PREBINDING = NO;
 				PRESERVE_DEAD_CODE_INITS_AND_TERMS = YES;
+				SDKROOT = macosx10.5;
 				SDKROOT_i386 = /Developer/SDKs/MacOSX10.5.sdk;
 				SDKROOT_ppc = /Developer/SDKs/MacOSX10.3.9.sdk;
 				SHARED_PRECOMPS_DIR = "/Library/Caches/com.apple.Xcode.$(UID)/SharedPrecompiledHeaders/$(PRODUCT_NAME)/$(CONFIGURATION)";
@@ -8287,7 +8290,7 @@
 				ONLY_LINK_ESSENTIAL_SYMBOLS = YES;
 				PREBINDING = NO;
 				PRESERVE_DEAD_CODE_INITS_AND_TERMS = YES;
-				SDKROOT = macosx10.4;
+				SDKROOT = macosx10.5;
 				SDKROOT_i386 = /Developer/SDKs/MacOSX10.5.sdk;
 				SDKROOT_ppc = /Developer/SDKs/MacOSX10.4u.sdk;
 				SHARED_PRECOMPS_DIR = "/Library/Caches/com.apple.Xcode.$(UID)/SharedPrecompiledHeaders/$(PRODUCT_NAME)/$(CONFIGURATION)";