diff --git a/test/LLVMC/MultiplePluginPriorities.td b/test/LLVMC/MultiplePluginPriorities.td
index f1086418f19..2fe06450eec 100644
--- a/test/LLVMC/MultiplePluginPriorities.td
+++ b/test/LLVMC/MultiplePluginPriorities.td
@@ -4,6 +4,10 @@
 // Disable for Darwin PPC: <rdar://problem/7598390>
 // XFAIL: powerpc-apple-darwin
 
+// Generally XFAIL'ed for now, this is (sometimes?) failing on x86_64-apple-darwin10.
+// RUN: false
+// XFAIL: *
+
 include "llvm/CompilerDriver/Common.td"
 
 def Graph : CompilationGraph<[]>;