diff --git a/__main__.py b/__main__.py
index 763bdb72b84a48ae2a385bff5a5aea6edc249c66..c6f50501fbbe7053483079d2d6fe2789b29cb1c2 100644
--- a/__main__.py
+++ b/__main__.py
@@ -400,7 +400,7 @@ if __name__ == "__main__":
     else : 
         results = table_results
         
-    results = results.fillna("-")
+    results = results.infer_objects().fillna("-")
         
     spuA(results, args)
     narG(results, args)