diff --git a/plugin/menu.py b/plugin/menu.py
index 752f8a0..0b882c4 100644
--- a/plugin/menu.py
+++ b/plugin/menu.py
@@ -25,7 +25,7 @@
 VISIBLE_ICON = os.path.join(ASSETS_PATH, 'visible.png')
 INVISIBLE_ICON = os.path.join(ASSETS_PATH, 'invisible.png')
 
-MAX_MAP_SIZE_MB = os.environ.get('MAX_MAP_SIZE_MB', 350)
+MAX_MAP_SIZE_MB = int(os.environ.get('MAX_MAP_SIZE_MB', 350))
 
 __all__ = ['MainMenu', 'EditMeshMenu']
 
diff --git a/plugin/vault_menu/VaultMenu.py b/plugin/vault_menu/VaultMenu.py
index fc2a59c..5d8236c 100644
--- a/plugin/vault_menu/VaultMenu.py
+++ b/plugin/vault_menu/VaultMenu.py
@@ -24,7 +24,7 @@
 ORG_FOLDER = 'my org'
 
 
-MAX_MAP_SIZE_MB = os.environ.get('MAX_MAP_SIZE_MB', 350)
+MAX_MAP_SIZE_MB = int(os.environ.get('MAX_MAP_SIZE_MB', 350))
 
 
 class VaultMenu: