diff --git a/third-party/gtest-1.8.1/fused-src/gtest/gtest-all.cc b/third-party/gtest-1.8.1/fused-src/gtest/gtest-all.cc
index 9f2b3d565..b19c9f2a8 100644
--- a/third-party/gtest-1.8.1/fused-src/gtest/gtest-all.cc
+++ b/third-party/gtest-1.8.1/fused-src/gtest/gtest-all.cc
@@ -8676,7 +8676,7 @@ static void StackLowerThanAddress(const void* ptr, bool* result) {
 // Make sure AddressSanitizer does not tamper with the stack here.
 GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
 static bool StackGrowsDown() {
-  int dummy;
+  int dummy = 0;
   bool result;
   StackLowerThanAddress(&dummy, &result);
   return result;