diff --git a/docker-compose.yml b/docker-compose.yml
index 24d017b..f6a0633 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -46,7 +46,7 @@ services:
       SEMAPHORE_EMAIL_PORT: ${SEMAPHORE_EMAIL_PORT:-2500}
       SEMAPHORE_EMAIL_SECURE: ${SEMAPHORE_EMAIL_SECURE:-False}
 
-      SEMAPHORE_LDAP_ENABLE: ${:-False}
+      SEMAPHORE_LDAP_ENABLE: ${SEMAPHORE_LDAP_ENABLE:-False}
       SEMAPHORE_LDAP_BIND_DN: ${SEMAPHORE_LDAP_BIND_DN:-}
       SEMAPHORE_LDAP_BIND_PASSWORD: ${SEMAPHORE_LDAP_BIND_PASSWORD:-}
       SEMAPHORE_LDAP_SERVER: ${SEMAPHORE_LDAP_SERVER:-}