diff --git a/core/java/android/os/UserHandle.java b/core/java/android/os/UserHandle.java
index 0527ed6..cac7f3b 100644
--- a/core/java/android/os/UserHandle.java
+++ b/core/java/android/os/UserHandle.java
@@ -125,7 +125,8 @@
     public static final int MIN_SECONDARY_USER_ID = 10;
 
     /** @hide */
-    public static final int MAX_SECONDARY_USER_ID = Integer.MAX_VALUE / UserHandle.PER_USER_RANGE;
+    public static final int MAX_SECONDARY_USER_ID =
+            Integer.MAX_VALUE / UserHandle.PER_USER_RANGE - 1;
 
     /**
      * (Arbitrary) user handle cache size.