diff --git a/ext/zlib/tests/data/zlib_flock.txt.gz b/ext/zlib/tests/data/zlib_flock.txt.gz
new file mode 100644
index 00000000000..07805db7558
Binary files /dev/null and b/ext/zlib/tests/data/zlib_flock.txt.gz differ
diff --git a/ext/zlib/tests/zlib_wrapper_flock_basic.phpt b/ext/zlib/tests/zlib_wrapper_flock_basic.phpt
index 3d7c72c84cd..9ebb517715b 100644
--- a/ext/zlib/tests/zlib_wrapper_flock_basic.phpt
+++ b/ext/zlib/tests/zlib_wrapper_flock_basic.phpt
@@ -4,7 +4,7 @@ Test function flock on a zlib stream
 zlib
 --FILE--
 <?php
-$f = __DIR__."/data/test.txt.gz";
+$f = __DIR__."/data/zlib_flock.txt.gz";
 $h = gzopen($f,'r');
 var_dump(flock($h, LOCK_EX));
 gzclose($h);