diff --git a/src/client/mac/Breakpad.xcodeproj/project.pbxproj b/src/client/mac/Breakpad.xcodeproj/project.pbxproj
index 3082a061..3c364c37 100644
--- a/src/client/mac/Breakpad.xcodeproj/project.pbxproj
+++ b/src/client/mac/Breakpad.xcodeproj/project.pbxproj
@@ -2108,9 +2108,6 @@
 			buildSettings = {
 				GCC_TREAT_WARNINGS_AS_ERRORS = NO;
 				SDKROOT = macosx10.5;
-				"SDKROOT[arch=i386]" = macosx10.4;
-				"SDKROOT[arch=ppc]" = macosx10.4;
-				"SDKROOT[arch=x86_64]" = macosx10.5;
 			};
 			name = Debug;
 		};
diff --git a/src/common/mac/Breakpad.xcconfig b/src/common/mac/Breakpad.xcconfig
index b6bf92b5..672be2ce 100644
--- a/src/common/mac/Breakpad.xcconfig
+++ b/src/common/mac/Breakpad.xcconfig
@@ -29,8 +29,6 @@
 
 ARCHS = $(ARCHS_STANDARD_32_64_BIT)
 SDKROOT = macosx10.5
-SDKROOT[arch=i386] = macosx10.4
-SDKROOT[arch=ppc] = macosx10.4
 
 GCC_VERSION = 4.2
 GCC_VERSION[sdk=macosx10.4][arch=*] = 4.0