diff --git a/build/macosx/universal/mozconfig.common b/build/macosx/universal/mozconfig.common
index 123966eeedf0..596908877ce6 100644
--- a/build/macosx/universal/mozconfig.common
+++ b/build/macosx/universal/mozconfig.common
@@ -6,9 +6,9 @@ mk_add_options MOZ_UNIFY_BDATE=1
 
 mk_add_options MOZ_POSTFLIGHT_ALL+=build/macosx/universal/flight.mk
 
-# Note, the version (10) is used by libffi's configure.
-ac_add_app_options i386 --target=i386-apple-darwin10
-ac_add_app_options x86_64 --target=x86_64-apple-darwin10
+DARWIN_VERSION=`uname -r`
+ac_add_app_options i386 --target=i386-apple-darwin$DARWIN_VERSION
+ac_add_app_options x86_64 --target=x86_64-apple-darwin$DARWIN_VERSION
 
 ac_add_options --with-macos-sdk=/Developer/SDKs/MacOSX10.6.sdk