diff --git a/specs/BUNDLE_SPEC.md b/specs/BUNDLE_SPEC.md
index 63b3c307886..c827fe54d18 100644
--- a/specs/BUNDLE_SPEC.md
+++ b/specs/BUNDLE_SPEC.md
@@ -32,7 +32,7 @@ in the OCI
 ### Publishing
 
 First, the bundle itself is stored in it's JSON-serialized form as a blob in the
-registry
+registry:
 
 ```
 POST /v2/foo/blobs/uploads/?digest=cafed00d...