diff --git a/libhwcomposer/hwc.cpp b/libhwcomposer/hwc.cpp
index 3026d99..5287377 100644
--- a/libhwcomposer/hwc.cpp
+++ b/libhwcomposer/hwc.cpp
@@ -222,6 +222,7 @@
             ctx->mLayerRotMap[i]->reset();
     }
 
+    memset(&(ctx->mPtorInfo), 0, sizeof(ctx->mPtorInfo));
     ctx->mAD->reset();
 
 }