diff --git a/src/freedombone-base-email b/src/freedombone-base-email
index a9d33ab2d32213902998eac310897e56556a2208..93bbf81d7f94750845caf615a5b5e0c580f3baeb 100755
--- a/src/freedombone-base-email
+++ b/src/freedombone-base-email
@@ -1702,7 +1702,7 @@ function populate_keyservers {
                 fi
             fi
             if [ $refresh_keys ]; then
-                su -c 'gpg --refresh-keys' "$USERNAME"
+                su -c 'gpg --refresh-keys' - "$USERNAME"
             fi
         fi
     done