diff --git a/core/modules/filters/removesuffix.js b/core/modules/filters/removesuffix.js
index 0dac6e598..3d305aabf 100644
--- a/core/modules/filters/removesuffix.js
+++ b/core/modules/filters/removesuffix.js
@@ -18,7 +18,7 @@ Export our filter function
 exports.removesuffix = function(source,operator,options) {
 	var results = [];
 	source(function(tiddler,title) {
-		if(title.substr(-operator.operand.length) === operator.operand) {
+		if(title && title.substr(-operator.operand.length) === operator.operand) {
 			results.push(title.substr(0,title.length - operator.operand.length));
 		}
 	});