diff --git a/adaptiveumbrella/wham2d.py b/adaptiveumbrella/wham2d.py
index 28b3b08..a67dc2d 100644
--- a/adaptiveumbrella/wham2d.py
+++ b/adaptiveumbrella/wham2d.py
@@ -67,7 +67,7 @@ class WHAM2DRunner(UmbrellaRunner):
         print(cmd)
         err_code = subprocess.call(cmd, shell=True)
         if err_code != 0:
-            print("wham exited with error code {}".format(err_corde))
+            print("wham exited with error code {}".format(err_code))
             exit(1)
 
     def load_wham_pmf(self, wham_file):