diff --git a/internal/controller/subscription.go b/internal/controller/subscription.go
index 028ab5872..9cb015069 100644
--- a/internal/controller/subscription.go
+++ b/internal/controller/subscription.go
@@ -65,6 +65,10 @@ func newSubscriptionFromConfigMap(r kubernetes.Interface) (*operatorv1alpha1.Sub
 					Name:  "ARGOCD_CLUSTER_CONFIG_NAMESPACES",
 					Value: "*",
 				},
+				{
+					Name:  "DISABLE_DEFAULT_ARGOCD_INSTANCE",
+					Value: "true",
+				},
 			},
 		},
 	}