diff --git a/api/settings.js b/api/settings.js
index 5b2d2d9..4775b64 100644
--- a/api/settings.js
+++ b/api/settings.js
@@ -33,10 +33,18 @@ module.exports = [
 						if (params.has(key)) {
 							let provided = params.get(key)
 
+							// Correct common errors in instance URL
 							if (key === "instance") {
 								provided = provided.replace(/\/+$/, "")
 							}
 
+							// Delete existing watch history when it's disabled
+							if (key === "save_history") {
+								if (provided !== "1") {
+									db.prepare("DELETE FROM WatchedVideos WHERE token = ?").run(token)
+								}
+							}
+
 							if (setting.type === "string") {
 								if (provided) data[key] = provided
 								else data[key] = null