diff --git a/charts/argo-cd/templates/argocd-application-controller/clusterrolebinding.yaml b/charts/argo-cd/templates/argocd-application-controller/clusterrolebinding.yaml
index 47974c64..00a260b0 100644
--- a/charts/argo-cd/templates/argocd-application-controller/clusterrolebinding.yaml
+++ b/charts/argo-cd/templates/argocd-application-controller/clusterrolebinding.yaml
@@ -14,10 +14,10 @@ subjects:
   name: {{ include "argo-cd.controller.serviceAccountName" . }}
   namespace: {{ include "argo-cd.namespace" . }}
 {{- if .Values.configs.params.applicationsetcontroller.namespaces }}
-{{- range .Values.configs.params.applicationsetcontroller.namespaces }}
+{{- range (split "," .Values.configs.params.applicationsetcontroller.namespaces) }}
 - kind: ServiceAccount
   name: {{ include "argo-cd.controller.serviceAccountName" $root }}
-  namespace: {{ . }}
+  namespace: {{ . | trim }}
 {{- end }}
 {{- end }}
 {{- end }}
diff --git a/charts/argo-cd/values.yaml b/charts/argo-cd/values.yaml
index df2bb3a0..14dbe315 100644
--- a/charts/argo-cd/values.yaml
+++ b/charts/argo-cd/values.yaml
@@ -279,11 +279,8 @@ configs:
     # -- Enables use of the Progressive Syncs capability
     applicationsetcontroller.enable.progressive.syncs: false
 
-    # When specifying multiple namespaces, specify them in array form
-    applicationsetcontroller.namespaces: []
-    # - namespace1
-    # - namespace2
-    # - namespace3
+    # When specifying multiple namespaces, specify them as a comma-separated string
+    applicationsetcontroller.namespaces: "namespace1, namespace2"
 
     # -- Enables [Applications in any namespace]
     ## List of additional namespaces where applications may be created in and reconciled from.