diff --git a/samples/image/Makefile.in b/samples/image/Makefile.in
index e2c29b50d4..0e42ca259c 100644
--- a/samples/image/Makefile.in
+++ b/samples/image/Makefile.in
@@ -13,7 +13,7 @@ top_srcdir = @top_srcdir@
 top_builddir = ../..
 program_dir = samples/image
 
-DATAFILES = horse.png horse.jpg horse.bmp horse.gif
+DATAFILES = horse.png horse.jpg horse.bmp horse.gif horse.pcx
 
 PROGRAM=image