diff --git a/resources/celerity/map.php b/resources/celerity/map.php
index 8a4146b0a3..f83c2b0f09 100644
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -528,7 +528,7 @@ return array(
     'rsrc/js/phui/behavior-phui-tab-group.js' => '0a0b10e9',
     'rsrc/js/phuix/PHUIXActionListView.js' => 'b5c256b8',
     'rsrc/js/phuix/PHUIXActionView.js' => 'b3465b9b',
-    'rsrc/js/phuix/PHUIXAutocomplete.js' => '7c492cd2',
+    'rsrc/js/phuix/PHUIXAutocomplete.js' => '7910aacb',
     'rsrc/js/phuix/PHUIXDropdownMenu.js' => '8018ee50',
     'rsrc/js/phuix/PHUIXFormControl.js' => '83e03671',
     'rsrc/js/phuix/PHUIXIconView.js' => 'bff6884b',
@@ -885,7 +885,7 @@ return array(
     'phui-workpanel-view-css' => 'a3a63478',
     'phuix-action-list-view' => 'b5c256b8',
     'phuix-action-view' => 'b3465b9b',
-    'phuix-autocomplete' => '7c492cd2',
+    'phuix-autocomplete' => '7910aacb',
     'phuix-dropdown-menu' => '8018ee50',
     'phuix-form-control-view' => '83e03671',
     'phuix-icon-view' => 'bff6884b',
@@ -1456,6 +1456,12 @@ return array(
       'multirow-row-manager',
       'javelin-json',
     ),
+    '7910aacb' => array(
+      'javelin-install',
+      'javelin-dom',
+      'phuix-icon-view',
+      'phabricator-prefab',
+    ),
     '7927a7d3' => array(
       'javelin-behavior',
       'javelin-quicksand',
@@ -1464,12 +1470,6 @@ return array(
       'owners-path-editor',
       'javelin-behavior',
     ),
-    '7c492cd2' => array(
-      'javelin-install',
-      'javelin-dom',
-      'phuix-icon-view',
-      'phabricator-prefab',
-    ),
     '7cbe244b' => array(
       'javelin-install',
       'javelin-util',
diff --git a/src/view/form/control/PhabricatorRemarkupControl.php b/src/view/form/control/PhabricatorRemarkupControl.php
index 52fb44617d..75054b9575 100644
--- a/src/view/form/control/PhabricatorRemarkupControl.php
+++ b/src/view/form/control/PhabricatorRemarkupControl.php
@@ -97,6 +97,15 @@ final class PhabricatorRemarkupControl extends AphrontFormTextAreaControl {
             'headerIcon' => 'fa-smile-o',
             'headerText' => pht('Find Emoji:'),
             'hintText' => $emoji_datasource->getPlaceholderText(),
+
+            // Cancel on emoticons like ":3".
+            'ignore' => array(
+              '3',
+              ')',
+              '(',
+              '-',
+              '/',
+            ),
           ),
         ),
       ));
diff --git a/webroot/rsrc/js/phuix/PHUIXAutocomplete.js b/webroot/rsrc/js/phuix/PHUIXAutocomplete.js
index b7116c557b..e99dcc34f2 100644
--- a/webroot/rsrc/js/phuix/PHUIXAutocomplete.js
+++ b/webroot/rsrc/js/phuix/PHUIXAutocomplete.js
@@ -343,6 +343,10 @@ JX.install('PHUIXAutocomplete', {
       return [' ', ':', ',', '.', '!', '?'];
     },
 
+    _getIgnoreList: function() {
+      return this._map[this._active].ignore || [];
+    },
+
     _isTerminatedString: function(string) {
       var terminators = this._getTerminators();
       for (var ii = 0; ii < terminators.length; ii++) {
@@ -517,6 +521,14 @@ JX.install('PHUIXAutocomplete', {
         }
       }
 
+      var ignore = this._getIgnoreList();
+      for (ii = 0; ii < ignore.length; ii++) {
+        if (trim.indexOf(ignore[ii]) === 0) {
+          this._deactivate();
+          return;
+        }
+      }
+
       // If the input is terminated by a space or another word-terminating
       // punctuation mark, we're going to deactivate if the results can not
       // be refined by addding more words.