diff --git a/tbxi/pef_info.py b/tbxi/pef_info.py
index d0742ed..b79c1a6 100644
--- a/tbxi/pef_info.py
+++ b/tbxi/pef_info.py
@@ -161,7 +161,7 @@ def parse_version(num):
     else:
         stage = '?'
 
-    unreleased = '%0x' % unreleased
+    unreleased = '%d' % unreleased
 
     vers = maj + '.' + minor