diff --git a/Makefile b/Makefile
index f879029..4c6908c 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,7 @@ define vault_env
 		export VAULT_TOKEN=$$(vault write -field=token auth/approle/login role_id=$$VAULT_ROLEID); \
 	fi && \
 	export CONSUL_HTTP_TOKEN=$$(vault read -field=token consul_root/au/syd1/creds/terraform-sonarr) && \
-	export SONARR_API_KEY=$$(vault kv get -field=apitoken kv/service/media-apps/sonarr)
+	export TF_VAR_sonarr_api_key=$$(vault kv get -field=apitoken kv/service/media-apps/sonarr)
 endef
 
 init: