diff --git a/SConstruct b/SConstruct
index 1569ce182f..82a281190c 100644
--- a/SConstruct
+++ b/SConstruct
@@ -118,7 +118,7 @@ pretxncommit.style = python:style.check_whitespace
 """ % (ROOT)
         sys.exit(1)
 
-if isdir(joinpath(ROOT, '.hg')):
+if ARGUMENTS['IGNORE_STYLE'] != 'True' and isdir(joinpath(ROOT, '.hg')):
     try:
         from mercurial import ui
         check_style_hook(ui.ui())
diff --git a/util/regress b/util/regress
index 4d3eddab80..5723eb1711 100755
--- a/util/regress
+++ b/util/regress
@@ -99,7 +99,7 @@ try:
     if options.jobs != 1:
         scons_opts += ' -j %d' % options.jobs
 
-    system('scons %s %s' % (scons_opts, ' '.join(targets)))
+    system('scons IGNORE_STYLE=True %s %s' % (scons_opts, ' '.join(targets)))
 
     sys.exit(0)