diff --git a/snappy-test.h b/snappy-test.h
index 633c69b..c9a777d 100644
--- a/snappy-test.h
+++ b/snappy-test.h
@@ -151,7 +151,7 @@ namespace file {
 
     int ret = std::fwrite(str.data(), str.size(), 1, fp);
     if (ret != 1) {
-      std::std::perror("fwrite");
+      std::perror("fwrite");
       std::exit(1);
     }