diff --git a/modules/ui/combobox.js b/modules/ui/combobox.js
index fa3cdbe7f..6a2e0174a 100644
--- a/modules/ui/combobox.js
+++ b/modules/ui/combobox.js
@@ -49,7 +49,7 @@ export function uiCombobox(context, klass) {
             .on('keydown.typeahead', keydown)
             .on('keyup.typeahead', keyup)
             .on('input.typeahead', change)
-            .on('mouseover', mouseover)
+            .on('mousedown', mousedown)
             .each(addCaret);
 
         function addCaret() {
@@ -189,7 +189,7 @@ export function uiCombobox(context, klass) {
         }
 
 
-        function mouseover() {
+        function mousedown() {
             // prevent the form element from blurring. it blurs on mousedown
             d3_event.stopPropagation();
             d3_event.preventDefault();
diff --git a/test/spec/ui/combobox.js b/test/spec/ui/combobox.js
index 48953282a..a48a62ac5 100644
--- a/test/spec/ui/combobox.js
+++ b/test/spec/ui/combobox.js
@@ -90,7 +90,7 @@ describe('uiCombobox', function() {
 
     it('adds combobox under container', function() {
         input.call(combobox.data(data));
-        body.selectAll('.combobox-caret').dispatch('mousedown');
+        body.selectAll('.combobox-input').dispatch('mousedown');
         expect(d3.select('.id-container > div.combobox').nodes().length).to.equal(1);
     });
 
@@ -106,14 +106,14 @@ describe('uiCombobox', function() {
 
     it('shows all entries when clicking on the caret', function() {
         input.property('value', 'foobar').call(combobox.data(data));
-        body.selectAll('.combobox-caret').dispatch('mousedown');
+        body.selectAll('.combobox-input').dispatch('mousedown');
         expect(body.selectAll('.combobox-option').size()).to.equal(5);
         expect(body.selectAll('.combobox-option').text()).to.equal('foobar');
     });
 
     it('is initially shown with no selection', function() {
         input.call(combobox.data(data));
-        body.selectAll('.combobox-caret').dispatch('mousedown');
+        body.selectAll('.combobox-input').dispatch('mousedown');
         expect(body.selectAll('.combobox-option.selected').size()).to.equal(0);
     });