X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/89c90bedb913a90c754115fcf8b150a474c91271..5d6aabc457e673e825c4cf46585938bcc77aec3b:/nominatim/config.py

diff --git a/nominatim/config.py b/nominatim/config.py
index 72aaf0bd..a8436440 100644
--- a/nominatim/config.py
+++ b/nominatim/config.py
@@ -68,9 +68,9 @@ class Configuration:
         """
         try:
             return int(self.__getattr__(name))
-        except ValueError:
+        except ValueError as exp:
             LOG.fatal("Invalid setting NOMINATIM_%s. Needs to be a number.", name)
-            raise UsageError("Configuration error.")
+            raise UsageError("Configuration error.") from exp
 
 
     def get_libpq_dsn(self):