diff --git a/common/rfb/ScaledPixelBuffer.cxx b/common/rfb/ScaledPixelBuffer.cxx
index 820817e..d9a245b 100644
--- a/common/rfb/ScaledPixelBuffer.cxx
+++ b/common/rfb/ScaledPixelBuffer.cxx
@@ -110,7 +110,7 @@
 }
 
 void ScaledPixelBuffer::scaleRect(const Rect& rect) {
-  U8 *src_ptr, *ptr;
+  U8 *ptr;
   static double c1_sub_dx, c1_sub_dy;
   Rect changed_rect;
   float rx, gx, bx;