diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index acd805591c41f..84ebdd15947dd 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -11947,6 +11947,12 @@ public class PackageManagerService extends IPackageManager.Stub {
             return false;
         }
 
+        if (mProtectedPackages.isPackageStateProtected(userId, packageName)) {
+            Slog.w(TAG, "Cannot suspend/un-suspend package \"" + packageName
+                    + "\": protected package");
+            return false;
+        }
+
         return true;
     }