diff --git a/src/bin/pg_basebackup/walmethods.c b/src/bin/pg_basebackup/walmethods.c
index a6d08c1..bc0790a 100644
--- a/src/bin/pg_basebackup/walmethods.c
+++ b/src/bin/pg_basebackup/walmethods.c
@@ -143,7 +143,7 @@ dir_open_for_write(const char *pathname, const char *temp_suffix, size_t pad_to_
 #ifdef HAVE_LIBZ
 	if (dir_data->compression_method == COMPRESSION_GZIP)
 	{
-		gzfp = gzdopen(fd, "wb");
+		gzfp = gzopen(tmppath, "wb");
 		if (gzfp == NULL)
 		{
 			dir_data->lasterrno = errno;