diff --git a/indra/develop.py b/indra/develop.py
index ce12b331032342311eb7e9851fb3e44335dd3005..dfc658edec7ca68fc355e125e15067f444e9aa28 100755
--- a/indra/develop.py
+++ b/indra/develop.py
@@ -391,6 +391,8 @@ def mk_distcc_hosts(basename, range):
                 if hostname.startswith('eniac'):
                     hosts, job_count = mk_distcc_hosts('eniac', 71)
                     os.putenv('DISTCC_HOSTS', hosts)
+            if job_count > 12:
+                job_count = 12;
             opts.extend(['-j', str(job_count)])
 
         if targets: