diff --git a/roles/copr/frontend/templates/copr.conf b/roles/copr/frontend/templates/copr.conf
index 51f63b5c3a..48d0bde6c0 100644
--- a/roles/copr/frontend/templates/copr.conf
+++ b/roles/copr/frontend/templates/copr.conf
@@ -260,7 +260,7 @@ EXTRA_BUILDCHROOT_TAGS = [{
     "tags": ["on_demand_powerful"],
 }, {
     # https://github.com/fedora-copr/copr/issues/3728
-    "pattern": " sergiomb/electrons/.*(x86_64|aarch64)/nodejs-electron",
+    "pattern": "sergiomb/electrons/.*(x86_64|aarch64)/nodejs-electron",
     "tags": ["on_demand_powerful"],
 }]
 {% endif %}