diff --git a/services/core/java/com/android/server/am/ForegroundServiceTypeLoggerModule.java b/services/core/java/com/android/server/am/ForegroundServiceTypeLoggerModule.java
index c0cb7d9f69e35..993595b4870d9 100644
--- a/services/core/java/com/android/server/am/ForegroundServiceTypeLoggerModule.java
+++ b/services/core/java/com/android/server/am/ForegroundServiceTypeLoggerModule.java
@@ -316,6 +316,10 @@ public class ForegroundServiceTypeLoggerModule {
         // then we should care, otherwise we assume
         // it's not related to any FGS
         UidState uidState = mUids.get(uid);
+        if (uidState == null) {
+            Log.w(TAG, "API event end called before start!");
+            return -1;
+        }
         if (uidState.mOpenWithFgsCount.contains(apiType)) {
             // are there any calls that started with an FGS?
             if (uidState.mOpenWithFgsCount.get(apiType) != 0) {