diff --git a/9pm.py b/9pm.py
index c823b99..ecf04c9 100755
--- a/9pm.py
+++ b/9pm.py
@@ -434,6 +434,7 @@ def setup_env(cmdline):
     if cmdline.debug:
         os.environ["NINEPM_DEBUG"] = "1"
 
+    os.environ["NINEPM_ROOT_PATH"] = ROOT_PATH
     os.environ["NINEPM_DATABASE"] = DATABASE
     os.environ["NINEPM_SCRATCHDIR"] = SCRATCHDIR
     os.environ["NINEPM_LOG_PATH"] = LOGDIR