diff --git a/common/rfb/Cursor.cxx b/common/rfb/Cursor.cxx
index 8ef8b17..3bb8e0f 100644
--- a/common/rfb/Cursor.cxx
+++ b/common/rfb/Cursor.cxx
@@ -38,6 +38,7 @@
 void Cursor::drawOutline(const Pixel& c)
 {
   Cursor outlined;
+  rdr::U8 cbuf[4];
 
   // Create a mirror of the existing cursor
   outlined.setPF(getPF());
@@ -45,7 +46,8 @@
   outlined.hotspot = hotspot;
 
   // Clear the mirror's background to the outline colour
-  outlined.fillRect(getRect(), c);
+  outlined.getPF().bufferFromPixel(cbuf, c);
+  outlined.fillRect(getRect(), cbuf);
 
   // Blit the existing cursor, using its mask
   outlined.maskRect(getRect(), data, mask.buf);