diff --git a/FPSim2/io/backends/pytables.py b/FPSim2/io/backends/pytables.py
index 03c6cb9..5466c86 100644
--- a/FPSim2/io/backends/pytables.py
+++ b/FPSim2/io/backends/pytables.py
@@ -7,6 +7,7 @@
     it_mol_supplier,
     FP_FUNC_DEFAULTS,
     RDKIT_PARSE_FUNCS,
+    FP_FUNCS
 )
 import tables as tb
 import numpy as np
@@ -48,7 +49,7 @@ def create_db_file(
     is_valid_file = isinstance(mols_source, str) and (
         mols_source.endswith((".smi", ".sdf", ".sdf.gz"))
     )
-    if not (is_valid_file or mol_format in RDKIT_PARSE_FUNCS):
+    if not (is_valid_file or mol_format in FP_FUNCS):
         raise ValueError(f"Unsupported mol_format: {mol_format}")
 
     if fp_type not in FP_FUNC_DEFAULTS: