diff --git a/tools/Makefile b/tools/Makefile
index 6d5562a..e2c614a 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -17,7 +17,7 @@ SOURCES	= emile-set-cmdline.c Makefile emile-first-tune.c \
 		  emile-install.c emile-set-output.c emile.c \
 		  emile_scanbus.c emile-map-set.c iso9660_ls.c \
 		  iso9660_cat.c minigzip.c read_vmlinuz.c device.c gzio.c \
-		  emile-mkisofs
+		  emile-mkisofs.c
 
 HEADERS	= device.h