--- a/bin/ebuild-ipc.py	
+++ a/bin/ebuild-ipc.py	
@@ -34,7 +34,7 @@ portage._disable_legacy_globals()
 
 class EbuildIpc(object):
 
-	_COMMUNICATE_TIMEOUT_SECONDS = 40
+	_COMMUNICATE_TIMEOUT_SECONDS = 400
 	_BUFSIZE = 4096
 
 	def __init__(self):