diff --git a/scripts/upgrade b/scripts/upgrade
index 5cd96f3..00ddfbb 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -27,9 +27,9 @@ fi
 # multi-instance cases break the remaining instances.
 # So we need to add the delimiters if they are missing
 # The config will be re-added afterwards
-if ! grep -q "begin ${app}" $ssh_dir/config; then
+if ! grep -q "begin ${app}" /root/.ssh/config; then
     # did not find delimiters so removing old configuration
-    sed -e "/Host ${server}/,+6d" "$ssh_dir/config" -i || true
+    sed -e "/Host ${server}/,+6d" "/root/.ssh/config" -i || true
 fi
 
 #=================================================