diff --git a/src/python/m5/util/fdthelper.py b/src/python/m5/util/fdthelper.py
index 27d6f844c2..7ad3aba132 100644
--- a/src/python/m5/util/fdthelper.py
+++ b/src/python/m5/util/fdthelper.py
@@ -43,6 +43,7 @@ from m5.ext.pyfdt import pyfdt
 import re
 import os
 from m5.SimObject import SimObject
+from m5.util import fatal
 
 class FdtProperty(pyfdt.FdtProperty):
     """Create a property without values."""