diff --git a/app/services/json_generator.py b/app/services/json_generator.py
index 6897391..4a2114a 100644
--- a/app/services/json_generator.py
+++ b/app/services/json_generator.py
@@ -292,7 +292,7 @@ def generar_factura_venta(rows: list, default_vendedor: str = "00",
         })
 
     nit_raw = str(h.get("NIT_EMPRESA") or "").strip()
-    cod_tercero = nit_raw.replace("-", "").strip() if nit_raw else str(h.get("COD_PACIENTE") or "").strip()
+    cod_tercero = nit_raw if nit_raw else str(h.get("COD_PACIENTE") or "").strip()
 
     prefijo_real = str(h.get("PREFIJO") or "").strip() or default_prefijo or "00"