diff --git a/include/communication/EmscriptenCommunication.h b/include/communication/EmscriptenCommunication.h
index 28888b5706..5144b96dc6 100644
--- a/include/communication/EmscriptenCommunication.h
+++ b/include/communication/EmscriptenCommunication.h
@@ -53,7 +53,7 @@ class EmscriptenCommunication : public CommandLine
      */
     void sliceNext() override;
 
-    bool isSequential() const
+    bool isSequential() const override
     {
         return false;
     }