diff --git a/game.xcodeproj/project.pbxproj b/game.xcodeproj/project.pbxproj
index f21b90c..0cc2fa5 100644
--- a/game.xcodeproj/project.pbxproj
+++ b/game.xcodeproj/project.pbxproj
@@ -707,6 +707,7 @@
 				PREBINDING = NO;
 				PRODUCT_BUNDLE_IDENTIFIER = com.ambrosiasw.redline;
 				PRODUCT_NAME = Redline;
+				SDKROOT = macosx10.7;
 				WRAPPER_EXTENSION = app;
 				ZERO_LINK = NO;
 			};
@@ -750,6 +751,7 @@
 				PREBINDING = NO;
 				PRODUCT_BUNDLE_IDENTIFIER = com.ambrosiasw.redline;
 				PRODUCT_NAME = Redline;
+				SDKROOT = macosx10.7;
 				WRAPPER_EXTENSION = app;
 				ZERO_LINK = NO;
 			};
@@ -791,6 +793,7 @@
 				PREBINDING = NO;
 				PRODUCT_BUNDLE_IDENTIFIER = com.ambrosiasw.redline;
 				PRODUCT_NAME = Redline;
+				SDKROOT = macosx10.7;
 				WRAPPER_EXTENSION = app;
 			};
 			name = Default;
@@ -801,7 +804,7 @@
 				ENABLE_TESTABILITY = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				OTHER_LDFLAGS = "-lz";
-				SDKROOT = "$(DEVELOPER_SDK_DIR)/MacOSX10.4u.sdk";
+				SDKROOT = macosx10.7;
 				ZERO_LINK = NO;
 			};
 			name = Debug;
@@ -822,7 +825,7 @@
 					"-weak_library",
 					$SDKROOT/usr/lib/libcurl.dylib,
 				);
-				SDKROOT = "$(DEVELOPER_SDK_DIR)/MacOSX10.4u.sdk";
+				SDKROOT = macosx10.7;
 				SDKROOT_i386 = /Developer/SDKs/MacOSX10.4u.sdk;
 				SDKROOT_ppc = /Developer/SDKs/MacOSX10.3.9.sdk;
 			};
@@ -831,7 +834,7 @@
 		7F060FDF0876EC7F001EA95C /* Default */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				SDKROOT = "$(DEVELOPER_SDK_DIR)/MacOSX10.4u.sdk";
+				SDKROOT = macosx10.7;
 			};
 			name = Default;
 		};