diff --git a/content/compose/startup-order.md b/content/compose/startup-order.md
index 582dc7aa6a..32eeb60539 100644
--- a/content/compose/startup-order.md
+++ b/content/compose/startup-order.md
@@ -39,7 +39,7 @@ services:
   db:
     image: postgres
     healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER} -d ${POSTGRES_DB}'"]
+      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER} -d ${POSTGRES_DB}"]
       interval: 10s
       retries: 5
       start_period: 30s
@@ -57,4 +57,4 @@ Compose also removes services in dependency order. `web` is removed before `db`
 ## Reference information 
 
 - [`depends_on`](compose-file/05-services.md#depends_on)
-- [`healthcheck`](compose-file/05-services.md#healthcheck)
\ No newline at end of file
+- [`healthcheck`](compose-file/05-services.md#healthcheck)