diff --git a/src/gitolite.pm b/src/gitolite.pm
index 7a32b89..ab863b9 100644
--- a/src/gitolite.pm
+++ b/src/gitolite.pm
@@ -591,7 +591,7 @@ sub parse_acl
     unless (defined($data_version) and $data_version eq $current_data_version) {
         # this cannot happen for 'easy-install' cases, by the way...
         print STDERR "(INTERNAL: $data_version -> $current_data_version; running gl-setup)\n";
-        system("$ENV{SHELL} -l gl-setup >&2");
+        system("$ENV{SHELL} -l -c gl-setup >&2");
 
         die "parse $GL_CONF_COMPILED failed: " . ($! or $@) unless do $GL_CONF_COMPILED;
     }