diff --git a/mac_build/boinc.xcodeproj/project.pbxproj b/mac_build/boinc.xcodeproj/project.pbxproj
index 993df34d0f..0ac20449ad 100644
--- a/mac_build/boinc.xcodeproj/project.pbxproj
+++ b/mac_build/boinc.xcodeproj/project.pbxproj
@@ -4366,8 +4366,6 @@
 				HEADER_SEARCH_PATHS = "../lib/**";
 				LIBRARY_STYLE = STATIC;
 				MACOSX_DEPLOYMENT_TARGET = 10.7;
-				"MACOSX_DEPLOYMENT_TARGET[arch=ppc]" = 10.7;
-				"MACOSX_DEPLOYMENT_TARGET[arch=x86_64]" = 10.7;
 				OTHER_CFLAGS = (
 					"-D_THREAD_SAFE",
 					"-DNDEBUG",
@@ -4538,8 +4536,6 @@
 				HEADER_SEARCH_PATHS = "../lib/**";
 				LIBRARY_STYLE = STATIC;
 				MACOSX_DEPLOYMENT_TARGET = 10.7;
-				"MACOSX_DEPLOYMENT_TARGET[arch=ppc]" = 10.7;
-				"MACOSX_DEPLOYMENT_TARGET[arch=x86_64]" = 10.7;
 				OTHER_CFLAGS = (
 					"-D_THREAD_SAFE",
 					"-D_DEBUG",