diff --git a/config/manager/manager.yaml b/config/manager/manager.yaml
index 0b40b09..4d7f4fa 100644
--- a/config/manager/manager.yaml
+++ b/config/manager/manager.yaml
@@ -28,5 +28,10 @@ spec:
             - "--enable-leader-election"
             - "--leader-election-id=gitea-operator"
           image: controller:latest
+          env:
+          - name: WATCH_NAMESPACE
+            valueFrom:
+              fieldRef:
+                fieldPath: metadata.annotations['olm.targetNamespaces']
       terminationGracePeriodSeconds: 10
       serviceAccountName: gitea-operator-sa