diff --git a/js/search/search_form_criteria_string.js b/js/search/search_form_criteria_string.js
index b659c6cb1..d266465ac 100644
--- a/js/search/search_form_criteria_string.js
+++ b/js/search/search_form_criteria_string.js
@@ -28,6 +28,11 @@ $(function()
 					'code': 'ends_with',
 					'rank': 30,
 				},
+				'REGEXP': {
+					'label': 'regexp',
+					'code': 'REGEXP',
+					'rank': 40,
+				},
 				'=': null,	// Remove this one from string widget.
 			},
 		},