diff --git a/aw_watcher_window/macos.swift b/aw_watcher_window/macos.swift
index c1b25b46..b0dbac70 100644
--- a/aw_watcher_window/macos.swift
+++ b/aw_watcher_window/macos.swift
@@ -294,12 +294,21 @@ class MainThing {
     // calculate now before executing any scripting since that can take some time
     let nowTime = Date.now
 
-    var windowTitle: AnyObject?
-    AXUIElementCopyAttributeValue(axElement, kAXTitleAttribute as CFString, &windowTitle)
+    var rawWindowTitle: AnyObject?
+    AXUIElementCopyAttributeValue(axElement, kAXTitleAttribute as CFString, &rawWindowTitle)
+    let windowTitle: String = rawWindowTitle as? String ?? ""
 
-    var data = NetworkMessage(app: frontmost.localizedName!, title: windowTitle as? String ?? "")
+    let applicationTitle = frontmost.localizedName!
 
-    if CHROME_BROWSERS.contains(frontmost.localizedName!) {
+    // https://github.com/ActivityWatch/aw-watcher-window/issues/85
+    guard applicationTitle != "loginwindow" && windowTitle != "Untitled" else {
+      log("loginwindow or Untitled detected, ignoring")
+      return
+    }
+
+    var data = NetworkMessage(app: applicationTitle, title: windowTitle as? String ?? "")
+
+    if CHROME_BROWSERS.contains(applicationTitle) {
       debug("Chrome browser detected, extracting URL and title")
 
       let chromeObject: ChromeProtocol = SBApplication.init(bundleIdentifier: bundleIdentifier)!
@@ -323,7 +332,7 @@ class MainThing {
           }
         }
       }
-    } else if frontmost.localizedName == "Safari" {
+    } else if applicationTitle == "Safari" {
       debug("Safari browser detected, extracting URL and title")
 
       let safariObject: SafariApplication = SBApplication.init(bundleIdentifier: bundleIdentifier)!