diff --git a/helm_deploy/hmpps-template-kotlin/values.yaml b/helm_deploy/hmpps-template-kotlin/values.yaml
index 5c87bc2..2a72b9f 100644
--- a/helm_deploy/hmpps-template-kotlin/values.yaml
+++ b/helm_deploy/hmpps-template-kotlin/values.yaml
@@ -18,7 +18,6 @@ generic-service:
   env:
     JAVA_OPTS: "-Xmx512m"
     SERVER_PORT: "8080"
-    APPLICATIONINSIGHTS_CONNECTION_STRING: "InstrumentationKey=$(APPINSIGHTS_INSTRUMENTATIONKEY)"
     APPLICATIONINSIGHTS_CONFIGURATION_FILE: applicationinsights.json
 
   # Pre-existing kubernetes secrets to load as environment variables in the deployment.
@@ -32,7 +31,7 @@ generic-service:
       EXAMPLE_API_CLIENT_ID: "TEMPLATE_KOTLIN_API_CLIENT_ID"
       EXAMPLE_API_CLIENT_SECRET: "TEMPLATE_KOTLIN_API_CLIENT_SECRET"
     application-insights:
-      APPINSIGHTS_INSTRUMENTATIONKEY: "APPINSIGHTS_INSTRUMENTATIONKEY"
+      APPLICATIONINSIGHTS_CONNECTION_STRING: "APPLICATIONINSIGHTS_CONNECTION_STRING"
 
   allowlist:
     groups: