diff --git a/SC1145.md b/SC1145.md
index f7b63bd..6760be2 100644
--- a/SC1145.md
+++ b/SC1145.md
@@ -1,4 +1,4 @@
-## Unknown external-sources value. Expected true/false.
+## Unknown `external-sources` value. Expected `true`/`false`.
 
 ### Problematic code: