diff --git a/CONFIGURATION.md b/CONFIGURATION.md
index ef042468..cd7292fd 100644
--- a/CONFIGURATION.md
+++ b/CONFIGURATION.md
@@ -266,7 +266,7 @@ export HISTFILE=~/.zsh_history
 More colors with case sensitive search of history:
 
 ```bash
-export HSTR<_CONFIG=hicolor,case-sensitive
+export HSTR_CONFIG=hicolor,case-sensitive
 ```
 
 Favorite commands view in black and white with prompt at the bottom of the screen: