diff --git a/reVX/setbacks/base.py b/reVX/setbacks/base.py
index d85e187f5..8001c8a04 100644
--- a/reVX/setbacks/base.py
+++ b/reVX/setbacks/base.py
@@ -275,8 +275,8 @@ def _parse_regulations(self, regulations_fpath):
             logger.error(msg)
             raise RuntimeError(msg)
 
-        for non_nan_col in ["Feature Type", "Value Type", "Value", "FIPS"]:
-            regulations = regulations[~regulations[non_nan_col].isna()]
+        for col in ["Feature Type", "Value Type", "Value", "FIPS"]:
+            regulations = regulations[~regulations[col].isna()]
 
         feature_types = regulations['Feature Type'].str.strip().str.lower()
         regulations['Feature Type'] = feature_types