diff --git a/src/applications/maniphest/controller/ManiphestTaskListController.php b/src/applications/maniphest/controller/ManiphestTaskListController.php
index 3eda25d564..776eb89e80 100644
--- a/src/applications/maniphest/controller/ManiphestTaskListController.php
+++ b/src/applications/maniphest/controller/ManiphestTaskListController.php
@@ -661,6 +661,24 @@ final class ManiphestTaskListController extends ManiphestController {
 
     $exclude_project_phids = $request->getStrList('xprojects');
     $task_ids = $request->getStrList('tasks');
+
+    // We only need the integer portion of each task ID, so get rid of any non-
+    // numeric elements
+    $numeric_task_ids = array();
+
+    foreach ($task_ids as $task_id) {
+      $task_id = preg_replace('/[a-zA-Z]+/', '', $task_id);
+      if (!empty($task_id)) {
+        $numeric_task_ids[] = $task_id;
+      }
+    }
+
+    if (empty($numeric_task_ids)) {
+      $numeric_task_ids = array(null);
+    }
+
+    $task_ids = $numeric_task_ids;
+
     $owner_phids = $request->getStrList('owners');
     $author_phids = $request->getStrList('authors');