diff --git a/common/rfb/tightEncode.h b/common/rfb/tightEncode.h
index 407c9d6..a6a8241 100644
--- a/common/rfb/tightEncode.h
+++ b/common/rfb/tightEncode.h
@@ -637,7 +637,6 @@
 bool CHECK_SOLID_TILE(Rect& r, rdr::U32 *colorPtr, bool needSameColor)
 {
   PIXEL_T *buf, colorValue;
-  int dx, dy;
   int w = r.width(), h = r.height();
 
   int stride = w;