diff --git a/site_scons/largefiles.py b/site_scons/largefiles.py
index 3793d5c..9b24ed4 100644
--- a/site_scons/largefiles.py
+++ b/site_scons/largefiles.py
@@ -1,8 +1,8 @@
 #
 # SCons Largefile enablement
 #
-# Version 1.1
-# 01-Oct-2009
+# Version 1.2
+# 16-Aug-2019
 #
 
 def enableLargeFiles(conf):
@@ -13,7 +13,7 @@ def enableLargeFiles(conf):
     offt=conf.CheckTypeSize('off_t','#include <stdio.h>\n#include <sys/types.h>')
     if offt<8 and offt>0:
         flags=conf.env.Dictionary()['CPPFLAGS']
-	conf.env.Append(CPPFLAGS='-D_FILE_OFFSET_BITS=64')
+        conf.env.Append(CPPFLAGS='-D_FILE_OFFSET_BITS=64')
         offt=conf.CheckTypeSize('off_t','#include <stdio.h>\n#include <sys/types.h>')
         if offt < 8:
               env.Replace(CPPFLAGS=flags)