diff --git a/core/modules/filters/has.js b/core/modules/filters/has.js
index de24ab67b..192daac70 100644
--- a/core/modules/filters/has.js
+++ b/core/modules/filters/has.js
@@ -3,7 +3,7 @@ title: $:/core/modules/filters/has.js
 type: application/javascript
 module-type: filteroperator
 
-Filter operator for checking if a tiddler has the specified field
+Filter operator for checking if a tiddler has the specified field or index
 
 \*/
 (function(){
@@ -33,7 +33,23 @@ exports.has = function(source,operator,options) {
 				}
 			});
 		}
-	} else {
+	}
+	else if(operator.suffix === "index") {
+		if(invert) {
+			source(function(tiddler,title) {
+				if(!tiddler || (tiddler && (!$tw.utils.hop($tw.wiki.getTiddlerDataCached(tiddler,Object.create(null)),operator.operand)))) {
+					results.push(title);
+				}
+			});
+		} else {
+			source(function(tiddler,title) {
+				if(tiddler && $tw.utils.hop($tw.wiki.getTiddlerDataCached(tiddler,Object.create(null)),operator.operand)) {
+					results.push(title);
+				}
+			});
+		}
+	}
+	else {
 		if(invert) {
 			source(function(tiddler,title) {
 				if(!tiddler || !$tw.utils.hop(tiddler.fields,operator.operand) || (tiddler.fields[operator.operand] === "")) {
diff --git a/editions/tw5.com/tiddlers/filters/examples/has.tid b/editions/tw5.com/tiddlers/filters/examples/has.tid
index 57941bd94..4f9654bd1 100644
--- a/editions/tw5.com/tiddlers/filters/examples/has.tid
+++ b/editions/tw5.com/tiddlers/filters/examples/has.tid
@@ -8,4 +8,6 @@ type: text/vnd.tiddlywiki
 <<.operator-example 1 "[has[color]]">>
 <<.operator-example 2 "[tag[Concepts]!has[modified]]">>
 <<.operator-example 3 "[has:field[emptyfield]]">>
-<<.operator-example 4 "[all[current]!has:field[doesntexist]]">>
\ No newline at end of file
+<<.operator-example 4 "[all[current]!has:field[doesntexist]]">>
+<<.operator-example 5 "[all[tiddlers+shadows]has:index[foreground]]">>
+<<.operator-example 6 "[all[current]!has:index[doesntexist]]">>
\ No newline at end of file
diff --git a/editions/tw5.com/tiddlers/filters/has.tid b/editions/tw5.com/tiddlers/filters/has.tid
index ed9a536d1..cccb152ae 100644
--- a/editions/tw5.com/tiddlers/filters/has.tid
+++ b/editions/tw5.com/tiddlers/filters/has.tid
@@ -2,12 +2,13 @@ caption: has
 created: 20140410103123179
 modified: 20190518145446047
 op-input: a [[selection of titles|Title Selection]]
-op-neg-output: ''without suffix''<br>&raquo; those input tiddlers in which field <<.place F>> does <<.em not>> exist or has an empty value<br>''suffix `field`''<br>&raquo; those input tiddlers in which field <<.place F>> does <<.em not>> exist
+op-neg-output: ''without suffix''<br>&raquo; those input tiddlers in which field <<.place F>> does <<.em not>> exist or has an empty value<br>''suffix `field`''<br>&raquo; those input tiddlers in which field <<.place F>> does <<.em not>> exist<br>''suffix `index`''<br>&raquo; those input tiddlers in which index <<.place F>> does <<.em not>> exist
 op-output: ''without suffix''<br>&raquo; those input tiddlers in which field <<.place F>> has a non-empty value<br>''suffix `field`''<br>&raquo; those input tiddlers in which field <<.place F>> exists
-op-parameter: the name of a [[field|TiddlerFields]]
+op-parameter: the name of a [[field|TiddlerFields]]<br>''suffix `index`''<br>&raquo; those input tiddlers in which index <<.place F>> exists
+op-parameter: the name of a [[field|TiddlerFields]] or, optionally an [[index|TextReference]]
 op-parameter-name: F
 op-purpose: filter the input by field existence
-op-suffix: <<.from-version "5.1.14">> optionally, the keyword `field`
+op-suffix: <<.from-version "5.1.14">> optionally, the keyword `field` or <<.from-version "5.1.22">> optionally, the keyword `index`
 op-suffix-name: S
 tags: [[Filter Operators]] [[Common Operators]] [[Field Operators]] [[Negatable Operators]]
 title: has Operator