diff --git a/libs/hwui/JankTracker.cpp b/libs/hwui/JankTracker.cpp
index d1ff67027d078..9d4ecccef4abd 100644
--- a/libs/hwui/JankTracker.cpp
+++ b/libs/hwui/JankTracker.cpp
@@ -285,6 +285,7 @@ void JankTracker::dumpData(const ProfileData* data, int fd) {
 void JankTracker::reset() {
     mData->jankTypeCounts.fill(0);
     mData->frameCounts.fill(0);
+    mData->slowFrameCounts.fill(0);
     mData->totalFrameCount = 0;
     mData->jankFrameCount = 0;
     mData->statStartTime = systemTime(CLOCK_MONOTONIC);