diff --git a/.zshrc b/.zshrc
index 5525eb1..ce76654 100644
--- a/.zshrc
+++ b/.zshrc
@@ -53,7 +53,7 @@ then
 fi
 
 
-# History Substring Search bindings
+# History Substring Search bindings (PageUp and PageDown)
 bindkey '^[[5~' history-substring-search-up
 bindkey '^[[6~' history-substring-search-down