diff --git a/main.py b/main.py
index 253b9cd..31a646a 100644
--- a/main.py
+++ b/main.py
@@ -135,7 +135,12 @@ def v1():
         PingRequester('192.168.2.1', 'data/192-168-2-1.csv')
     ]
 
+    sig_received = False
+
     def stop(sig, frame):
+        if sig_received:
+            exit(1)
+
         print("Stopping threads gratefully (may take up to 60 seconds)")
         for thread in threads:
             thread.finish()
@@ -155,6 +160,9 @@ def v2():
                     '1.1.1.1', '217.237.148.22', '192.168.2.1')
 
     def stop(sig, frame):
+        if ping.stop:
+            exit(1)
+
         print("Stopping process gratefully (may take up to 60 seconds)")
         ping.finish()