diff --git a/server/src/main/java/com/genymobile/scrcpy/control/PointersState.java b/server/src/main/java/com/genymobile/scrcpy/control/PointersState.java
index a12da71dd6..de28f46bd9 100644
--- a/server/src/main/java/com/genymobile/scrcpy/control/PointersState.java
+++ b/server/src/main/java/com/genymobile/scrcpy/control/PointersState.java
@@ -59,7 +59,7 @@ public int getPointerIndex(long id) {
         // id 0 is reserved for mouse events
         int localId = nextUnusedLocalId();
         if (localId == -1) {
-            throw new AssertionError("pointers.size() < maxFingers implies that a local id is available");
+            throw new AssertionError("All local ids are in use (pointers.size() == MAX_POINTERS)");
         }
         Pointer pointer = new Pointer(id, localId);
         pointers.add(pointer);