diff --git a/measurement_main.py b/measurement_main.py
index 74f9079..ab0a011 100755
--- a/measurement_main.py
+++ b/measurement_main.py
@@ -448,6 +448,7 @@ class Server:
                     str(self.config["port"]),
                     "--one-off",
                 ]
+                is_measurement_done = False
                 while not is_measurement_done:
                     try:
                         try: