diff --git a/packages/DocumentsUI/src/com/android/documentsui/Events.java b/packages/DocumentsUI/src/com/android/documentsui/Events.java
index d4c3ba3ba3c3b..c06ea0a257d74 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/Events.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/Events.java
@@ -38,7 +38,9 @@ final class Events {
      * Returns true if event was triggered by a finger or stylus touch.
      */
     static boolean isTouchEvent(MotionEvent e) {
-        return isTouchType(e.getToolType(0));
+        return isTouchType(e.getToolType(0))
+                // Temporarily work around uiautomator's missing tool type support.
+                || isUnknownType(e.getToolType(0));
     }
 
     /**
@@ -49,13 +51,20 @@ final class Events {
     }
 
     /**
-     * Returns true if event was triggered by a finger or stylus touch.
+     * Returns true if type is finger or stylus.
      */
     static boolean isTouchType(int toolType) {
         return toolType == MotionEvent.TOOL_TYPE_FINGER
                 || toolType == MotionEvent.TOOL_TYPE_STYLUS;
     }
 
+    /**
+     * Returns true if type is unknown.
+     */
+    static boolean isUnknownType(int toolType) {
+        return toolType == MotionEvent.TOOL_TYPE_UNKNOWN;
+    }
+
     /**
      * Returns true if event was triggered by a finger or stylus touch.
      */