diff --git a/src/js/login.js b/src/js/login.js
index c49ad98..33d2006 100644
--- a/src/js/login.js
+++ b/src/js/login.js
@@ -80,7 +80,10 @@ class Form extends ElemJS {
 		let currentAddress = homeserver.value
 		let ok = false
 		while (!ok) {
-			if (!currentAddress.match(/^https?:\/\//)) currentAddress = "https://" + currentAddress
+			if (!currentAddress.match(/^https?:\/\//)) {
+				console.warn(`${currentAddress} doesn't specify the protocol, assuming https`)
+				currentAddress = "https://" + currentAddress
+		}
 			currentAddress = currentAddress.replace(/\/*$/, "")
 			this.status(`Looking up homeserver... trying ${currentAddress}`)
 			try {