diff --git a/llvm/lib/Transforms/Instrumentation/HWAddressSanitizer.cpp b/llvm/lib/Transforms/Instrumentation/HWAddressSanitizer.cpp
index 0b9856b5126a10..ebfb9c80d2f946 100644
--- a/llvm/lib/Transforms/Instrumentation/HWAddressSanitizer.cpp
+++ b/llvm/lib/Transforms/Instrumentation/HWAddressSanitizer.cpp
@@ -124,7 +124,7 @@ static cl::opt<bool> ClGenerateTagsWithCalls(
     cl::init(false));
 
 static cl::opt<bool> ClGlobals("hwasan-globals", cl::desc("Instrument globals"),
-                               cl::Hidden, cl::init(false));
+                               cl::Hidden, cl::init(false), cl::ZeroOrMore);
 
 static cl::opt<int> ClMatchAllTag(
     "hwasan-match-all-tag",