diff --git a/ch12/12.3/12.3.md b/ch12/12.3/12.3.md
index 252ff832..a9933163 100644
--- a/ch12/12.3/12.3.md
+++ b/ch12/12.3/12.3.md
@@ -1,4 +1,4 @@
-# 12.3 Exercises for Section 12.3
+# Exercises for Section 12.3
 
 ### 12.3.1