diff --git a/templates/frontend.yaml b/templates/frontend.yaml
index 8c2e295..d2b140a 100644
--- a/templates/frontend.yaml
+++ b/templates/frontend.yaml
@@ -14,6 +14,10 @@ service:
         port: 80
         protocol: HTTP
 
+env:
+  {{- if .Values.api.ingress.main.enabled }}
+  VIKUNJA_API_URL: "http://{{ index .Values.api.ingress.main.hosts 0 "host" }}{{ index .Values.api.ingress.main.hosts 0 "path" }}"
+  {{ end }}
 
 {{ end }}