diff --git a/src/sniffles/sniffles b/src/sniffles/sniffles
index b33e816..f04bb0b 100755
--- a/src/sniffles/sniffles
+++ b/src/sniffles/sniffles
@@ -510,7 +510,6 @@ if __name__ == "__main__":
     try:
         Sniffles2_Main(processes)
     except (util.Sniffles2Exit, SystemExit) as exit_code:
-        # print(f'Sniffles exit with code {exit_code}')
         if len(processes):
             # Allow time for child process error messages to propagate
             print("Sniffles2Main: Shutting down workers")
@@ -526,7 +525,7 @@ if __name__ == "__main__":
                 proc.process.join()
             except:
                 pass
-        int_exit_code = exit_code.args[0]
-        exit(int_exit_code)
+        exit(exit_code.code)
     except:
         logging.getLogger('sniffles.main').exception(f'Unhandled error while running sniffles.')
+        exit(1)
diff --git a/src/sniffles/util.py b/src/sniffles/util.py
index 20d054b..464cc64 100644
--- a/src/sniffles/util.py
+++ b/src/sniffles/util.py
@@ -15,7 +15,7 @@
 
 
 class Sniffles2Exit(Exception):
-    pass
+    code: int = 1
 
 
 def stdev(nums):