diff --git a/static/index.html b/static/index.html
index 86f0f3e..ae7d0f8 100644
--- a/static/index.html
+++ b/static/index.html
@@ -523,7 +523,7 @@
                                         class="stadium-btn send-btn"
                                         @click="handleSendOrStop"
                                         :disabled="!isConnected || (!inputMessage.trim() && !streamingMessage)">
-                                    <span v-if="streamingMessage">⏹</span>
+                                    <span v-if="streamingMessage" class="stop-icon"></span>
                                     <span v-else class="send-icon"></span>
                                 </button>
                             </div>
diff --git a/static/style.css b/static/style.css
index 919aa68..b0867dc 100644
--- a/static/style.css
+++ b/static/style.css
@@ -1613,10 +1613,22 @@ o-conversations {
     margin-left: 5px;
 }
 
+.stadium-btn.send-btn .stop-icon {
+    width: 12px;
+    height: 12px;
+    border-radius: 2px;
+    background-color: #fffaf0;
+    display: block;
+}
+
 .stadium-btn.send-btn:disabled .send-icon {
     border-left-color: rgba(255, 255, 255, 0.4);
 }
 
+.stadium-btn.send-btn:disabled .stop-icon {
+    background-color: rgba(255, 255, 255, 0.4);
+}
+
 .stadium-shell.is-multiline .stadium-btn {
     align-self: flex-end;
     margin-top: 0;