https://bugs.gentoo.org/829340
diff --git a/SConstruct b/SConstruct
index 7062a072de7..df14a73723c 100644
--- a/SConstruct
+++ b/SConstruct
@@ -1253,7 +1253,7 @@ envDict = dict(BUILD_ROOT=buildDir,
 if get_option('build-tools') == 'next':
     SCons.Tool.DefaultToolpath.insert(0, os.path.abspath('site_scons/site_tools/next'))
 
-env = Environment(variables=env_vars, **envDict)
+env = Environment(variables=env_vars, ENV = {'PATH' : os.environ['PATH']}, **envDict)
 del envDict
 
 if get_option('cache-signature-mode') == 'validate':