diff --git a/llvm/test/LLVMC/TestWarnings.td b/llvm/test/LLVMC/TestWarnings.td
index 9523e24702ea..c684e42ea633 100644
--- a/llvm/test/LLVMC/TestWarnings.td
+++ b/llvm/test/LLVMC/TestWarnings.td
@@ -1,6 +1,6 @@
 // Check that warnings about unused options are really emitted.
 // This should fail because the output is printed on stderr.
-// RUN: ignore tblgen -I %p/../../include --gen-llvmc %s |& grep "option '-Wall' has no effect!"
+// RUN: tblgen -I %p/../../include --gen-llvmc %s |& grep "option '-Wall' has no effect!"
 
 include "llvm/CompilerDriver/Common.td"