diff --git a/tools/tools/tinderbox/www/Makefile b/tools/tools/tinderbox/www/Makefile
index ba40ed9b4e27..ca9d4e812b2b 100644
--- a/tools/tools/tinderbox/www/Makefile
+++ b/tools/tools/tinderbox/www/Makefile
@@ -5,7 +5,9 @@ DATA		 = tb.css valid-css.gif valid-xhtml10.png
 WWWDIR		?= ${HOME}/public_html
 
 realinstall:
-	${INSTALL} -m 0755 ${CGI} ${WWWDIR}
-	${INSTALL} -m 0644 ${DATA} ${WWWDIR}
+	${INSTALL} -m 0755 ${.CURDIR}/${CGI} ${WWWDIR}
+.for FILE in ${DATA}
+	${INSTALL} -m 0644 ${.CURDIR}/${FILE} ${WWWDIR}
+.endfor
 
 .include <bsd.prog.mk>