diff --git a/system/helpers/inflector_helper.php b/system/helpers/inflector_helper.php
index 0bd1e11..2069a19 100644
--- a/system/helpers/inflector_helper.php
+++ b/system/helpers/inflector_helper.php
@@ -85,7 +85,7 @@
 			'/([^u])s$/'			=> '\1',
 		);
 
-		return preg_replace(array_keys($singular_values), $singular_values, $result);
+		return preg_replace(array_keys($singular_rules), $singular_rules, $result);
 	}
 }