diff --git a/services/inputflinger/InputReader.h b/services/inputflinger/InputReader.h
index 1de9d19..e554e57 100644
--- a/services/inputflinger/InputReader.h
+++ b/services/inputflinger/InputReader.h
@@ -1247,6 +1247,7 @@
     CursorScrollAccumulator mRotaryEncoderScrollAccumulator;
 
     int32_t mSource;
+    float mScalingFactor;
 
     void sync(nsecs_t when);
 };