diff --git a/core/java/android/view/FrameMetrics.java b/core/java/android/view/FrameMetrics.java
index 5c4450a..2b938d0 100644
--- a/core/java/android/view/FrameMetrics.java
+++ b/core/java/android/view/FrameMetrics.java
@@ -198,7 +198,7 @@
         int SWAP_BUFFERS = 12;
         int FRAME_COMPLETED = 13;
 
-        int FRAME_STATS_COUNT = 14; // must always be last
+        int FRAME_STATS_COUNT = 16; // must always be last
     }
 
     /*
diff --git a/libs/hwui/FrameInfo.cpp b/libs/hwui/FrameInfo.cpp
index 09b3945..826f0bb 100644
--- a/libs/hwui/FrameInfo.cpp
+++ b/libs/hwui/FrameInfo.cpp
@@ -43,6 +43,9 @@
         == static_cast<int>(FrameInfoIndex::NumIndexes),
         "size mismatch: FrameInfoNames doesn't match the enum!");
 
+static_assert(static_cast<int>(FrameInfoIndex::NumIndexes) == 16,
+        "Must update value in FrameMetrics.java#FRAME_STATS_COUNT (and here)");
+
 void FrameInfo::importUiThreadInfo(int64_t* info) {
     memcpy(mFrameInfo, info, UI_THREAD_FRAME_INFO_SIZE * sizeof(int64_t));
 }
diff --git a/libs/hwui/FrameInfo.h b/libs/hwui/FrameInfo.h
index 1fe5459..45b57de 100644
--- a/libs/hwui/FrameInfo.h
+++ b/libs/hwui/FrameInfo.h
@@ -52,6 +52,7 @@
     QueueBufferDuration,
 
     // Must be the last value!
+    // Also must be kept in sync with FrameMetrics.java#FRAME_STATS_COUNT
     NumIndexes
 };