diff --git a/csv_merge.py b/csv_merge.py
index 46d67b6..fa7cc4c 100644
--- a/csv_merge.py
+++ b/csv_merge.py
@@ -13,9 +13,12 @@ def process(directory):
         dirname = os.path.basename(subdir)
         if dirname == '':
             dirname = os.path.basename(os.path.dirname(subdir))
-        mainCSV = pd.read_csv(os.path.join(subdir, f"{dirname}.csv"))
-        candCSV = pd.read_csv(os.path.join(subdir, "cands","results_a.csv"))
-        merge(mainCSV, candCSV, os.path.join(subdir, f"{dirname}_merged.csv"))
+        try:
+            mainCSV = pd.read_csv(os.path.join(subdir, f"{dirname}.csv"))
+            candCSV = pd.read_csv(os.path.join(subdir, "cands","results_a.csv"))
+            merge(mainCSV, candCSV, os.path.join(subdir, f"{dirname}_merged.csv"))
+        except FileNotFoundError:
+            logger.error(f"{dirname} has no candidates!")
 
 def merge(mainDF:pd.DataFrame, candDF:pd.DataFrame, outname):
     #add new columns to main dataframe