diff --git a/src/SUMMARY.md b/src/SUMMARY.md
index 7aff0fa..1201992 100644
--- a/src/SUMMARY.md
+++ b/src/SUMMARY.md
@@ -34,7 +34,7 @@
 - [Essential Collections](ch08-00-essential-collections.md)
     - [Vectors](ch08-01-vectors.md)
     - [Strings](ch08-02-strings.md)
-    - [`HashMap<K, V>`](ch08-03-hash-map.md)
+    - [HashMaps](ch08-03-hashmaps.md)
 
 - [Error Handling]()
 
diff --git a/src/ch08-03-hash-map.md b/src/ch08-03-hashmaps.md
similarity index 100%
rename from src/ch08-03-hash-map.md
rename to src/ch08-03-hashmaps.md