diff --git a/contrib/update-copyright.py b/contrib/update-copyright.py
index 12ce4c05b7cc5234c72e5d1d4849f0a5d250e5e6..2d85e64af5eeb38e92a9388e4b7281e776dcf332 100755
--- a/contrib/update-copyright.py
+++ b/contrib/update-copyright.py
@@ -594,7 +594,7 @@ class TestsuiteFilter (GenericFilter):
         if filename == 'README' and os.path.basename (dir) == 'params':
             return True
         if filename == 'pdt_5.f03' and os.path.basename (dir) == 'gfortran.dg':
-	    return True
+            return True
         return GenericFilter.skip_file (self, dir, filename)
 
 class LibCppFilter (GenericFilter):