diff --git a/test_common/harness/compat.h b/test_common/harness/compat.h
index b0be6ab7..3858a7ce 100644
--- a/test_common/harness/compat.h
+++ b/test_common/harness/compat.h
@@ -258,6 +258,16 @@ typedef long long           int64_t;
 
 
 
+//
+// string.h
+//
+
+#if defined(_MSC_VER)
+    #define strtok_r strtok_s
+#endif
+
+
+
 //
 // unistd.h
 //