diff --git a/n8n/templates/configmap.yaml b/n8n/templates/configmap.yaml
index b83e7eb..372b498 100644
--- a/n8n/templates/configmap.yaml
+++ b/n8n/templates/configmap.yaml
@@ -39,4 +39,9 @@ data:
 
   N8N_LOG_LEVEL: {{ .Values.n8n.log_level | default "debug" | quote }}
   DB_LOGGING_ENABLED: {{ .Values.n8n.db_logging_enabled | default "true" | quote }}
-  DB_LOGGING_OPTIONS: {{ .Values.n8n.db_logging_options | default "all" | quote }}
\ No newline at end of file
+  DB_LOGGING_OPTIONS: {{ .Values.n8n.db_logging_options | default "all" | quote }}
+  
+  {{- with .Values.n8n.extraEnvs }}
+  {{- toYaml . | nindent 2 }}
+  {{- end }}
+  
\ No newline at end of file
diff --git a/n8n/values.yaml b/n8n/values.yaml
index 8eabf29..4e874f5 100644
--- a/n8n/values.yaml
+++ b/n8n/values.yaml
@@ -27,9 +27,7 @@ redis:
 n8n:
   log_level: "debug"
   timezone: ""
-  webhook:
-    # TODO: use default service url
-    url: http://localhost
+  webhookUrl: "http://localhost"
   auth:
     enabled: false
     username: "n8n"
@@ -39,6 +37,10 @@ n8n:
       enabled: true
       # prune old executions data after X hours
       max_age: "72"
+  # Additional environment variables to add to the configmap
+  extraEnvs: {}
+    # CUSTOM_VAR1: "value1"
+    # CUSTOM_VAR2: "value2"
 
 # values for PostgreSql helm chart
 postgresql: