diff --git a/js/id/actions/delete_member.js b/js/id/actions/delete_member.js
new file mode 100644
index 000000000..50b331e14
--- /dev/null
+++ b/js/id/actions/delete_member.js
@@ -0,0 +1,5 @@
+iD.actions.DeleteMember = function(relationId, memberIndex) {
+    return function(graph) {
+        return graph.replace(graph.entity(relationId).removeMember(memberIndex));
+    };
+};
diff --git a/js/id/core/relation.js b/js/id/core/relation.js
index 460b8ee43..e65862704 100644
--- a/js/id/core/relation.js
+++ b/js/id/core/relation.js
@@ -73,6 +73,12 @@ _.extend(iD.Relation.prototype, {
         return this.update({members: members});
     },
 
+    removeMember: function(index) {
+        var members = this.members.slice();
+        members.splice(index, 1);
+        return this.update({members: members});
+    },
+
     removeMembersWithID: function(id) {
         var members = _.reject(this.members, function(m) { return m.id === id; });
         return this.update({members: members});
diff --git a/test/index.html b/test/index.html
index 91dc1c5f9..580885630 100644
--- a/test/index.html
+++ b/test/index.html
@@ -105,6 +105,7 @@
     <script src='../js/id/actions/add_vertex.js'></script>
     <script src='../js/id/actions/change_tags.js'></script>
     <script src='../js/id/actions/connect.js'></script>
+    <script src='../js/id/actions/delete_member.js'></script>
     <script src='../js/id/actions/delete_multiple.js'></script>
     <script src='../js/id/actions/delete_node.js'></script>
     <script src="../js/id/actions/delete_relation.js"></script>
@@ -188,6 +189,7 @@
     <script src='spec/actions/circularize.js'></script>
     <script src='spec/actions/orthogonalize.js'></script>
     <script src='spec/actions/connect.js'></script>
+    <script src='spec/actions/delete_member.js'></script>
     <script src="spec/actions/delete_multiple.js"></script>
     <script src="spec/actions/delete_node.js"></script>
     <script src="spec/actions/delete_relation.js"></script>
diff --git a/test/index_packaged.html b/test/index_packaged.html
index cf745ce5b..15bcef8df 100644
--- a/test/index_packaged.html
+++ b/test/index_packaged.html
@@ -30,6 +30,7 @@
     <script src="spec/actions/change_tags.js"></script>
     <script src='spec/actions/circularize.js'></script>
     <script src='spec/actions/connect.js'></script>
+    <script src='spec/actions/delete_member.js'></script>
     <script src="spec/actions/delete_multiple.js"></script>
     <script src="spec/actions/delete_node.js"></script>
     <script src="spec/actions/delete_relation.js"></script>
diff --git a/test/spec/actions/delete_member.js b/test/spec/actions/delete_member.js
new file mode 100644
index 000000000..bb6e9c85c
--- /dev/null
+++ b/test/spec/actions/delete_member.js
@@ -0,0 +1,9 @@
+describe("iD.actions.DeleteMember", function () {
+    it("removes the member at the specified index", function () {
+        var node     = iD.Node(),
+            relation = iD.Relation({members: [node.id]}),
+            action   = iD.actions.DeleteMember(relation.id, 0),
+            graph    = action(iD.Graph([node, relation]));
+        expect(graph.entity(relation.id).members).to.eql([]);
+    });
+});
diff --git a/test/spec/core/relation.js b/test/spec/core/relation.js
index 6af273aeb..23e549b0d 100644
--- a/test/spec/core/relation.js
+++ b/test/spec/core/relation.js
@@ -128,6 +128,13 @@ describe('iD.Relation', function () {
         });
     });
 
+    describe("#removeMember", function () {
+        it("removes the member at the specified index", function () {
+            var r = iD.Relation({members: [{id: 'a'}, {id: 'b'}, {id: 'c'}]});
+            expect(r.removeMember(1).members).to.eql([{id: 'a'}, {id: 'c'}]);
+        });
+    });
+
     describe("#removeMembersWithID", function () {
         it("removes members with the given ID", function () {
             var r = iD.Relation({members: [{id: 'a'}, {id: 'b'}, {id: 'a'}]});