diff --git a/src/gitolite-shell b/src/gitolite-shell
index 4bbae48..a3ec321 100755
--- a/src/gitolite-shell
+++ b/src/gitolite-shell
@@ -234,5 +234,6 @@ sub http_print_headers {
     print "Expires: Fri, 01 Jan 1980 00:00:00 GMT\r\n";
     print "Pragma: no-cache\r\n";
     print "Cache-Control: no-cache, max-age=0, must-revalidate\r\n";
+    print "Content-Type: text/plain\r\n";
     print "\r\n";
 }