diff --git a/llvm/test/Bindings/llvm-c/lit.local.cfg b/llvm/test/Bindings/llvm-c/lit.local.cfg
index 270a7f2365acadeb8ea724598bac389e4e18b5f9..d83ebeed8e1cadc97cb2de697f5dd90cdfb3c4a5 100644
--- a/llvm/test/Bindings/llvm-c/lit.local.cfg
+++ b/llvm/test/Bindings/llvm-c/lit.local.cfg
@@ -1,3 +1,5 @@
 targets = set(config.root.targets_to_build.split())
-if not (targets & set(["X86", "ARM"])):
+if not "X86" in targets:
+    config.unsupported = True
+if not "ARM" in targets:
     config.unsupported = True