diff --git a/mac_build/boinc.pbproj/project.pbxproj b/mac_build/boinc.pbproj/project.pbxproj
index ee3eeb7759..42ea2eb7f9 100755
--- a/mac_build/boinc.pbproj/project.pbxproj
+++ b/mac_build/boinc.pbproj/project.pbxproj
@@ -71,7 +71,7 @@
 		20286C28FDCF999611CA2CEA = {
 			buildSettings = {
 				MACOSX_DEPLOYMENT_TARGET = 10.3;
-				SDKROOT = /Developer/SDKs/MacOSX10.3.9.sdk;
+				SDKROOT = /Developer/SDKs/MacOSX10.3.0.sdk;
 			};
 			buildStyles = (
 				05952DFCFFF02D1B11CA0E50,