diff --git a/src/prefs.js b/src/prefs.js
index d2a657d8..2d209358 100644
--- a/src/prefs.js
+++ b/src/prefs.js
@@ -251,7 +251,7 @@ class PrefsPluginFeature extends Adw.ActionRow
 
         if(enableSwitch.active)
             settingsData[this.title] = this.currentRank;
-        else if(settingsData[this.title])
+        else if(settingsData[this.title] != null)
             delete settingsData[this.title];
 
         this._updateRanking(settingsData);