diff --git a/root/srv/setup-ttrss.sh b/root/srv/setup-ttrss.sh
index 12d8b4d..ad2d77c 100755
--- a/root/srv/setup-ttrss.sh
+++ b/root/srv/setup-ttrss.sh
@@ -114,7 +114,7 @@ setup_ttrss()
     fi
 
     # Patch URL path.
-    sed -i -e "s@define('SELF_URL_PATH'.*@define('SELF_URL_PATH', '$TTRSS_SELF_URL');@g" config.php
+    sed -i -e "s@define('SELF_URL_PATH'.*@define('SELF_URL_PATH', '$TTRSS_SELF_URL');@g" ${TTRSS_PATH}/config.php
 
     # Check if single user mode is selected
     if [ "$TTRSS_SINGLEUSER" = true ]; then