diff --git a/hardware/disk/reiserfsprogs/actions.py b/hardware/disk/reiserfsprogs/actions.py
index 05700d09cc..d47e49dd57 100644
--- a/hardware/disk/reiserfsprogs/actions.py
+++ b/hardware/disk/reiserfsprogs/actions.py
@@ -9,6 +9,7 @@ from pisi.actionsapi import pisitools
 from pisi.actionsapi import get
 
 def setup():
+    pisitools.flags.add("-std=gnu89")
     autotools.configure("--prefix=/usr --sbindir=/sbin")
 
 def build():