diff --git a/kscreensaver/krootbacking/Makefile.am b/kscreensaver/krootbacking/Makefile.am
index e67a9552..0352c5d2 100644
--- a/kscreensaver/krootbacking/Makefile.am
+++ b/kscreensaver/krootbacking/Makefile.am
@@ -11,3 +11,7 @@ noinst_HEADERS = krootbacking.h
 
 hackdir = /usr/local/bin/
 hack_DATA = xscreensaver-getimage xscreensaver-getimage-file
+
+install-data-hook:
+	chmod 755 $(hackdir)/xscreensaver-getimage
+	chmod 755 $(hackdir)/xscreensaver-getimage-file