diff --git a/runcoms/zpreztorc b/runcoms/zpreztorc
index ee5aa0d33c..8cdb163bb9 100644
--- a/runcoms/zpreztorc
+++ b/runcoms/zpreztorc
@@ -10,7 +10,7 @@
 #
 
 # Set case-sensitivity for completion, history lookup, etc.
-zstyle ':prezto:*:*' case-sensitive 'no'
+# zstyle ':prezto:*:*' case-sensitive 'yes'
 
 # Color output (auto set to 'no' on dumb terminals).
 zstyle ':prezto:*:*' color 'yes'