diff --git a/prompt2model/dataset_retriever/description_dataset_retriever.py b/prompt2model/dataset_retriever/description_dataset_retriever.py
index 5e5e852d9..91a425e0e 100644
--- a/prompt2model/dataset_retriever/description_dataset_retriever.py
+++ b/prompt2model/dataset_retriever/description_dataset_retriever.py
@@ -424,7 +424,7 @@ def make_dataset_from_samples(
             columns, "input_col" and "output_col".
         """
         updated_inputs, updated_outputs = [], []
-        if len(inputs) < 0 or len(inputs) != len(outputs):
+        if len(inputs) <= 0 or len(inputs) != len(outputs):
             logger.error("Length of inputs and outputs must be >0 and equal.")
         else:
             for i, o in zip(inputs, outputs):