diff --git a/Makefile b/Makefile
index 0f8a3ca..a2e9804 100644
--- a/Makefile
+++ b/Makefile
@@ -259,7 +259,7 @@ install-common:
 	install -m 0644 qubes-rpc/{qubes.SuspendPre,qubes.SuspendPost,qubes.GetAppmenus} $(DESTDIR)/etc/qubes-rpc
 	install -m 0755 qubes-rpc/qubes.SuspendPreAll $(DESTDIR)/etc/qubes-rpc
 	install -m 0755 qubes-rpc/qubes.SuspendPostAll $(DESTDIR)/etc/qubes-rpc
-	install -m 0644 qubes-rpc/qubes.WaitForSession $(DESTDIR)/etc/qubes-rpc
+	install -m 0755 qubes-rpc/qubes.WaitForSession $(DESTDIR)/etc/qubes-rpc
 	install -m 0644 qubes-rpc/qubes.DetachPciDevice $(DESTDIR)/etc/qubes-rpc
 	install -m 0644 qubes-rpc/qubes.{Backup,Restore} $(DESTDIR)/etc/qubes-rpc
 	install -m 0644 qubes-rpc/qubes.Select{File,Directory} $(DESTDIR)/etc/qubes-rpc
diff --git a/qubes-rpc/qubes.WaitForSession b/qubes-rpc/qubes.WaitForSession
old mode 100644
new mode 100755
index 2200009..bf9c4e3
--- a/qubes-rpc/qubes.WaitForSession
+++ b/qubes-rpc/qubes.WaitForSession
@@ -1,2 +1,5 @@
+#!/bin/sh
 read USERNAME
 su -c 'echo $$ >> /tmp/qubes-session-waiter; [ ! -f /tmp/qubes-session-env ] && exec sleep inf' - "$USERNAME" 2> /dev/null
+# the above line is _expected_ to be terminated by a signal, don't treat this as a failure
+exit 0