diff --git a/camera/CameraSessionStats.cpp b/camera/CameraSessionStats.cpp
index 26c612a..3954db5 100644
--- a/camera/CameraSessionStats.cpp
+++ b/camera/CameraSessionStats.cpp
@@ -278,7 +278,8 @@
         mRequestCount(0),
         mResultErrorCount(0),
         mDeviceError(false),
-        mVideoStabilizationMode(-1) {}
+        mVideoStabilizationMode(-1),
+        mSessionIndex(0) {}
 
 CameraSessionStats::CameraSessionStats(const String16& cameraId,
         int facing, int newCameraState, const String16& clientName,
@@ -297,7 +298,8 @@
                 mRequestCount(0),
                 mResultErrorCount(0),
                 mDeviceError(0),
-                mVideoStabilizationMode(-1) {}
+                mVideoStabilizationMode(-1),
+                mSessionIndex(0) {}
 
 status_t CameraSessionStats::readFromParcel(const android::Parcel* parcel) {
     if (parcel == NULL) {
@@ -409,6 +411,12 @@
         return err;
     }
 
+    int32_t sessionIdx;
+    if ((err = parcel->readInt32(&sessionIdx)) != OK) {
+        ALOGE("%s: Failed to read session index from parcel", __FUNCTION__);
+        return err;
+    }
+
     mCameraId = id;
     mFacing = facing;
     mNewCameraState = newCameraState;
@@ -426,6 +434,7 @@
     mStreamStats = std::move(streamStats);
     mUserTag = userTag;
     mVideoStabilizationMode = videoStabilizationMode;
+    mSessionIndex = sessionIdx;
 
     return OK;
 }
@@ -523,6 +532,11 @@
         return err;
     }
 
+    if ((err = parcel->writeInt32(mSessionIndex)) != OK) {
+        ALOGE("%s: Failed to write session index!", __FUNCTION__);
+        return err;
+    }
+
     return OK;
 }