diff --git a/helm/taskchampion-sync-server/templates/secrets/postgres-secret.yaml b/helm/taskchampion-sync-server/templates/secrets/postgres-secret.yaml
index 07b13d9..c1a0405 100644
--- a/helm/taskchampion-sync-server/templates/secrets/postgres-secret.yaml
+++ b/helm/taskchampion-sync-server/templates/secrets/postgres-secret.yaml
@@ -8,7 +8,7 @@ metadata:
 type: Opaque
 data:
   host: {{ .Values.postgres.host | b64enc }}
-  port: {{ .Values.postgres.port | b64enc }}
+  port: {{ .Values.postgres.port | toString | b64enc }}
   username: {{ .Values.postgres.username | b64enc }}
   password: {{ .Values.postgres.password | b64enc }}
   database: {{ .Values.postgres.database | b64enc }}