diff --git a/addons/y2038/y2038.py b/addons/y2038/y2038.py
index 65882574c..63ecca057 100644
--- a/addons/y2038/y2038.py
+++ b/addons/y2038/y2038.py
@@ -239,6 +239,7 @@ for dumpfile in dumpfiles:
         safe_ranges = []
         safe = -1
         time_bits_defined = False
+        srclinenr = '0'
         for directive in cfg.directives:
             # track source line number
             if directive.file == srcfile: