diff --git a/bubble-server/src/main/resources/packer/roles/mitmproxy/files/bubble_conn_check.py b/bubble-server/src/main/resources/packer/roles/mitmproxy/files/bubble_conn_check.py
index b8d4ba7f..4f7ce56d 100644
--- a/bubble-server/src/main/resources/packer/roles/mitmproxy/files/bubble_conn_check.py
+++ b/bubble-server/src/main/resources/packer/roles/mitmproxy/files/bubble_conn_check.py
@@ -48,7 +48,7 @@ def dumpstacks(signal, frame):
                 code.append("  %s" % (line.strip()))
     print("\n------------------------------------- stack traces ------------------------------"+"\n".join(code), file=sys.stderr, flush=True)
 
-signal.signal(signal.SIGQUIT, dumpstacks)
+signal.signal(signal.SIGUSR1, dumpstacks)
 
 
 REDIS_DNS_PREFIX = 'bubble_dns_'