diff --git a/test/util-test.cc b/test/util-test.cc
index 9952f64c..3d76ec2a 100644
--- a/test/util-test.cc
+++ b/test/util-test.cc
@@ -269,10 +269,16 @@ TEST(UtilTest, StrError) {
 #else
   int error_code = EDOM;
 #endif
-  int result = StrError(error_code, message = buffer, 1);
+
+  int result = 0;
+  // StrError never uses buffer on MinGW.
+#ifndef __MINGW32__
+  result = StrError(error_code, message = buffer, 1);
   EXPECT_EQ(buffer, message);  // Message should point to buffer.
   EXPECT_EQ(ERANGE, result);
   EXPECT_STREQ("", message);
+#endif
+
   result = StrError(error_code, message = buffer, BUFFER_SIZE);
   EXPECT_EQ(0, result);
   std::size_t message_size = std::strlen(message);