diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 08b204af7fe71..76cfcaeb76ffd 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -11429,6 +11429,7 @@ public final class ActivityManagerService extends ActivityManagerNative
                 && userId == UserHandle.USER_SYSTEM
                 && (info.flags & PERSISTENT_MASK) == PERSISTENT_MASK) {
             r.persistent = true;
+            r.maxAdj = ProcessList.PERSISTENT_PROC_ADJ;
         }
         addProcessNameLocked(r);
         return r;