diff --git a/wetb/prepost/dlcplots.py b/wetb/prepost/dlcplots.py
index 9e347587638ce4dfa7a3ed99bce6fcde0f019a8c..4c68943428c156a456b36c717b9dc3cea2683bdd 100644
--- a/wetb/prepost/dlcplots.py
+++ b/wetb/prepost/dlcplots.py
@@ -52,7 +52,7 @@ plt.rc('legend', numpoints=1)
 plt.rc('legend', borderaxespad=0)
 
 
-def merge_sim_ids(post_dirs, sim_ids, post_dir_save=False):
+def merge_sim_ids(sim_ids, post_dirs, post_dir_save=False):
     """
     """
     # map the run_dir to the same order as the post_dirs, labels