diff --git a/services/core/java/com/android/server/am/AppExitInfoTracker.java b/services/core/java/com/android/server/am/AppExitInfoTracker.java
index da06753ef0f46..1b5483af46ed6 100644
--- a/services/core/java/com/android/server/am/AppExitInfoTracker.java
+++ b/services/core/java/com/android/server/am/AppExitInfoTracker.java
@@ -879,7 +879,7 @@ public final class AppExitInfoTracker {
         if (TextUtils.equals(pkgName, processName)) {
             // Omit the process name here to save space
             processName = null;
-        } else if (processName != null && processName.startsWith(pkgName)) {
+        } else if (processName != null && pkgName != null && processName.startsWith(pkgName)) {
             // Strip the prefix to save space
             processName = processName.substring(pkgName.length());
         }