diff --git a/gitea/auto_mapper/auto_mapper.py b/gitea/auto_mapper/auto_mapper.py
index 9298fcf..80d228c 100644
--- a/gitea/auto_mapper/auto_mapper.py
+++ b/gitea/auto_mapper/auto_mapper.py
@@ -15,13 +15,13 @@ def str_to_bool(value):
     return value.lower() in ['true', '1', 'yes', 'y']
 
 GITEA_INSTANCE  : str  = os.getenv("GITEA_INSTANCE")                if os.getenv("GITEA_INSTANCE") != None else None
-GITEA_PORT      : int  = os.getenv("GITEA_PORT")                    if os.getenv("GITEA_PORT")     != None else None
+GITEA_PORT      : int  = os.getenv("GITEA_PORT")                    if os.getenv("GITEA_PORT")     != None else 0
 GITEA_TOKEN     : str  = os.getenv("GITEA_TOKEN")                   if os.getenv("GITEA_TOKEN")    != None else None
 GITEA_SSL       : bool = str_to_bool(os.getenv("GITEA_SSL"))        if os.getenv("GITEA_SSL")      != None else False
 DEBUG           : bool = str_to_bool(os.getenv("DEBUG"))            if os.getenv("DEBUG")          != None else False
 SOURCE_ORGA     : str  = os.getenv("SOURCE_ORGA")                   if os.getenv("SOURCE_ORGA")    != None else None
-DRY_RUN         : bool = str_to_bool(os.getenv("DRY_RUN"))          if os.getenv("DRY_RUN")        != None else None
-EXCLUDE_ORGAS   : list = os.getenv("EXCLUDE_ORGAS").split(',')      if os.getenv("EXCLUDE_ORGAS")  != None else None
+DRY_RUN         : bool = str_to_bool(os.getenv("DRY_RUN"))          if os.getenv("DRY_RUN")        != None else False
+EXCLUDE_ORGAS   : list = os.getenv("EXCLUDE_ORGAS").split(',')      if os.getenv("EXCLUDE_ORGAS")  != None else []
 UPDATE_TEAMS    : bool = str_to_bool(os.getenv("UPDATE_TEAMS"))     if os.getenv("UPDATE_TEAMS")   != None else False
 OVERRIDE_TEAMS  : bool = str_to_bool(os.getenv("OVERRIDE_TEAMS"))   if os.getenv("OVERRIDE_TEAMS") != None else False