diff --git a/src/ace/Search.js b/src/ace/Search.js
index 61bdf5d2..2399f172 100644
--- a/src/ace/Search.js
+++ b/src/ace/Search.js
@@ -170,7 +170,7 @@ Search.SELECTION = 2;
         }
 
         var modifier = "g";
-        if (this.$options.caseSensitive) {
+        if (!this.$options.caseSensitive) {
             modifier += "i";
         }