diff --git a/src/exchange/taler-exchange-httpd.c b/src/exchange/taler-exchange-httpd.c
index 38d140fef..52847a1f0 100644
--- a/src/exchange/taler-exchange-httpd.c
+++ b/src/exchange/taler-exchange-httpd.c
@@ -811,7 +811,7 @@ main (int argc,
 
     fh = GNUNET_NETWORK_get_fd (nh);
 
-    if (0 != fchmod (fh, unixpath_mode))
+    if (0 != chmod (unixpath, unixpath_mode))
     {
       fprintf (stderr, "chmod failed: %s\n", strerror (errno));
       return 1;