diff --git a/src/nqrduck_broadband/controller.py b/src/nqrduck_broadband/controller.py
index 343b740..e58d416 100644
--- a/src/nqrduck_broadband/controller.py
+++ b/src/nqrduck_broadband/controller.py
@@ -47,6 +47,7 @@ class BroadbandController(ModuleController):
             if reflection is not None:
                 self.module.model.current_broadband_measurement.add_tune_and_match(reflection)
             self.module.nqrduck_signal.emit("start_measurement", None)
+            QApplication.processEvents()
             self.module.model.waiting_for_tune_and_match = False
 
     def received_LUT(self, LUT : Measurement) -> None: