diff --git a/LCS/PyCommon/dbcredentials.py b/LCS/PyCommon/dbcredentials.py
index e68bed2e00119448480c242735155196b6a6ee18..f70ed28b41d71e3d637d4f9ba8eb1eeabe1f2bb3 100644
--- a/LCS/PyCommon/dbcredentials.py
+++ b/LCS/PyCommon/dbcredentials.py
@@ -82,7 +82,7 @@ class Credentials:
     """
     return {
       "host": self.host,
-      "port": self.port or -1,
+      "port": self.port if self.port >= 0 else 5432,
 
       "user": self.user,
       "passwd": self.password,