diff --git a/singlepulse.py b/singlepulse.py
index 0ecedc3..160dfd2 100644
--- a/singlepulse.py
+++ b/singlepulse.py
@@ -327,7 +327,7 @@ def compute_snr_from_h5(h5_file, detrend_ft=True, mad_filter=True, save=False, s
 #%%
 for i, pulsar_dir in enumerate(pulsar_dir_list):
     save_path = save_path_list[i] #AH: link directory and save path in a bit of a messy way oops
-    h5_dir = os.join(pulsar_dir,"cands","")
+    h5_dir = os.path.join(pulsar_dir,"cands","")
     h5_files = sorted(glob.glob(f"{pulsar_dir}*.h5"))
 
     results = []