diff --git a/professor/professor.html b/professor/professor.html
index d66e00c..f5ba3ff 100644
--- a/professor/professor.html
+++ b/professor/professor.html
@@ -44,7 +44,7 @@
     <label for="new_transcription">New transcription</label><textarea id="new_transcription" rows="3" placeholder=""></textarea>
 </div>
 
-<button id="submit_button" onclick="submit()" type="button">Submit</button>
+<button id="submit_button" onclick="submit()" type="button">Submit</button><span id="update_indicator"></span>
 
 <script src="video.js/dist/video.min.js"></script>
 
diff --git a/professor/script.js b/professor/script.js
index 256ade2..98fce30 100644
--- a/professor/script.js
+++ b/professor/script.js
@@ -35,6 +35,9 @@ function fillLineInfo(line_json) {
 }
 
 async function submit() {
+    document.getElementById("update_indicator").innerText = "⭯"
+
+
     const new_transcription = document.getElementById("new_transcription").value;
     const new_speakers = await Promise.all(document.getElementById("speaker_input").value
         .trim()
@@ -68,7 +71,13 @@ async function submit() {
                 'Content-Type': 'application/json'
             },
             body: JSON.stringify({transcription: new_transcription, speakers: new_speakers})
-        })
+        }).then(response => {
+        if (response.ok) {
+            document.getElementById("update_indicator").innerText = "\u2714\ufe0f"
+        } else {
+            document.getElementById("update_indicator").innerText = "\u2716\ufe0f️"
+        }
+    })
 }
 
 $(function () {
diff --git a/professor/style.less b/professor/style.less
index d18f72c..b6a5093 100644
--- a/professor/style.less
+++ b/professor/style.less
@@ -49,4 +49,11 @@ label {
 button {
   margin-top: 5px;
   margin-bottom: 5px;
+}
+
+#update_indicator {
+  width: 1.3em;
+  height: 1.3em;
+  margin-left: 1em;
+  vertical-align: middle;
 }
\ No newline at end of file