diff --git a/include/communication/EmscriptenCommunication.h b/include/communication/EmscriptenCommunication.h
index d6d07baed3..7f4c68a14a 100644
--- a/include/communication/EmscriptenCommunication.h
+++ b/include/communication/EmscriptenCommunication.h
@@ -52,9 +52,11 @@ class EmscriptenCommunication : public CommandLine
      * \brief Initiates the slicing of the next item.
      */
     void sliceNext() override;
+
+    bool isSequential() const { return false; }
 };
 
 } // namespace cura
 
 #endif // __EMSCRIPTEN__
-#endif // EMSCRIPTENCOMMUNICATION_H
\ No newline at end of file
+#endif // EMSCRIPTENCOMMUNICATION_H