diff --git a/engine/security/trust/trust_key_mng.md b/engine/security/trust/trust_key_mng.md
index 7433cf044d..18f7dc2210 100644
--- a/engine/security/trust/trust_key_mng.md
+++ b/engine/security/trust/trust_key_mng.md
@@ -29,7 +29,7 @@ Delegation keys are optional, and not generated as part of the normal `docker`
 workflow.  They need to be
 [manually generated and added to the repository](trust_delegation.md#generating-delegation-keys).
 
-Note: Prior to Docker Engine 1.11, the snapshot key was also generated and stored
+**Note:** Prior to Docker Engine 1.11, the snapshot key was also generated and stored
 locally client-side. [Use the Notary CLI to manage your snapshot key locally
 again](/notary/advanced_usage.md#rotate-keys) for
 repositories created with newer versions of Docker.