diff --git a/src/platform/DARWIN/AFSPreference/OpenAFS.xcodeproj/project.pbxproj b/src/platform/DARWIN/AFSPreference/OpenAFS.xcodeproj/project.pbxproj
index dc0e301ed7..a006158d1b 100644
--- a/src/platform/DARWIN/AFSPreference/OpenAFS.xcodeproj/project.pbxproj
+++ b/src/platform/DARWIN/AFSPreference/OpenAFS.xcodeproj/project.pbxproj
@@ -968,7 +968,6 @@
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				PREBINDING = NO;
-				SDKROOT = /Developer/SDKs/MacOSX10.4u.sdk;
 			};
 			name = Debug;
 		};
@@ -984,7 +983,6 @@
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				PREBINDING = NO;
-				SDKROOT = /Developer/SDKs/MacOSX10.4u.sdk;
 			};
 			name = Release;
 		};
diff --git a/src/platform/DARWIN/afscell/afscell.xcodeproj/project.pbxproj b/src/platform/DARWIN/afscell/afscell.xcodeproj/project.pbxproj
index d8ac099f2b..4e572c8014 100644
--- a/src/platform/DARWIN/afscell/afscell.xcodeproj/project.pbxproj
+++ b/src/platform/DARWIN/afscell/afscell.xcodeproj/project.pbxproj
@@ -252,7 +252,6 @@
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				PREBINDING = NO;
-				SDKROOT = "$(DEVELOPER_SDK_DIR)/MacOSX10.4u.sdk";
 			};
 			name = Debug;
 		};
@@ -263,7 +262,6 @@
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				PREBINDING = NO;
-				SDKROOT = "$(DEVELOPER_SDK_DIR)/MacOSX10.4u.sdk";
 			};
 			name = Release;
 		};