diff --git a/core/modules/filters.js b/core/modules/filters.js
index 3aeebcaaa..2b7f87fa4 100644
--- a/core/modules/filters.js
+++ b/core/modules/filters.js
@@ -48,6 +48,11 @@ function parseFilterOperation(operators,filterString,p) {
 			operator.operator = filterString.substring(p,bracketPos);
 			p = bracketPos + 1;
 		}
+		var colon = operator.operator.indexOf(':');
+		if(colon > -1) {
+			operator.field = operator.operator.substring(colon+1);
+			operator.operator = operator.operator.substring(0,colon);
+		}
 		if(operator.operator === "") {
 			operator.operator = "title";
 		}
@@ -180,6 +185,7 @@ exports.compileFilter = function(filterString) {
 							operator: operator.operator,
 							operand: operand,
 							prefix: operator.prefix,
+							field: operator.field,
 							regexp: operator.regexp
 						},{
 							wiki: self,
diff --git a/core/modules/filters/field.js b/core/modules/filters/field.js
index efbcd50df..b3b2d2787 100644
--- a/core/modules/filters/field.js
+++ b/core/modules/filters/field.js
@@ -22,7 +22,7 @@ exports.field = function(source,operator,options) {
 		var tiddler = options.wiki.getTiddler(title);
 		if(tiddler) {
 			var match,
-				text = tiddler.getFieldString(operator.operator.replace(/:$/, ""));
+				text = tiddler.getFieldString(operator.field);
 			if(operator.regexp) {
 				match = !! operator.regexp.exec(text);
 			}
@@ -38,6 +38,10 @@ exports.field = function(source,operator,options) {
 		}
 	}
 	// Iterate through the source tiddlers
+	if(!operator.field) {
+		operator.field = operator.operator;
+	}
+	operator.field.toLowerCase();
 	if($tw.utils.isArray(source)) {
 		$tw.utils.each(source,function(title) {
 			checkTiddler(title);