diff --git a/services/core/java/com/android/server/am/ProcessList.java b/services/core/java/com/android/server/am/ProcessList.java
index bce31734d064..3ed4df779dad 100644
--- a/services/core/java/com/android/server/am/ProcessList.java
+++ b/services/core/java/com/android/server/am/ProcessList.java
@@ -276,8 +276,8 @@ public final class ProcessList {
     // don't have an oom adj assigned by the system).
     public static final int NATIVE_ADJ = -1000;
 
-    // Memory pages are 4K.
-    static final int PAGE_SIZE = 4 * 1024;
+    // Memory page size.
+    static final int PAGE_SIZE = (int) Os.sysconf(OsConstants._SC_PAGESIZE);
 
     // Activity manager's version of Process.THREAD_GROUP_BACKGROUND
     static final int SCHED_GROUP_BACKGROUND = 0;