diff --git a/libs/ui/InputDispatcher.cpp b/libs/ui/InputDispatcher.cpp
index 5da1676..b5744b3 100644
--- a/libs/ui/InputDispatcher.cpp
+++ b/libs/ui/InputDispatcher.cpp
@@ -1916,6 +1916,14 @@
                 // The first/last pointer went down/up.
                 action = maskedAction == AMOTION_EVENT_ACTION_POINTER_DOWN
                         ? AMOTION_EVENT_ACTION_DOWN : AMOTION_EVENT_ACTION_UP;
+            } else {
+                // A secondary pointer went down/up.
+                uint32_t splitPointerIndex = 0;
+                while (pointerId != splitPointerIds[splitPointerIndex]) {
+                    splitPointerIndex += 1;
+                }
+                action = maskedAction | (splitPointerIndex
+                        << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT);
             }
         } else {
             // An unrelated pointer changed.