diff --git a/manifest.toml b/manifest.toml
index b582b0a..5018476 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -46,7 +46,7 @@ ram.runtime = "50M"
     help.en = "As Darksky is deprecating his api, it is suggested to opt for Visual Crossing"
     help.fr = "Comme Darksky déprécie son API, il est suggéré d'opter pour Visual Crossing"
     type = "select"
-    choices = ["darksky", "visualcrossing"]
+    choices = ["", "darksky", "visualcrossing"]
     optional = true
 
     [install.weather_key]