diff --git a/shapepipe/modules/make_cat_package/make_cat.py b/shapepipe/modules/make_cat_package/make_cat.py
index c29191e6..4130a226 100644
--- a/shapepipe/modules/make_cat_package/make_cat.py
+++ b/shapepipe/modules/make_cat_package/make_cat.py
@@ -169,7 +169,7 @@ def save_sm_data(
         Threshold for galaxy selection; object is classified as galaxy if
         :math:`{\rm class} >` ``gal_thresh``
     nobj : int, optional
-        Number of objects, only used if sexcat_sm_path is ``None``
+        Number of objects, only used if sexcat_sm_path is ``-1``
 
     Returns
     -------
@@ -186,7 +186,7 @@ def save_sm_data(
         sexcat_sm_file.open()
 
         sm = np.copy(sexcat_sm_file.get_data()["SPREAD_MODEL"])
-        sm_err = np.copy(sexcat_sm_file.get_data()["SPREADERR_MODEL"]
+        sm_err = np.copy(sexcat_sm_file.get_data()["SPREADERR_MODEL"])
                          
         sexcat_sm_file.close()
 
@@ -207,7 +207,7 @@ def save_sm_data(
 
     final_cat_file.close()
 
-    return cat_size
+    return n_obj
 
 
 class SaveCatalogue:
@@ -221,13 +221,16 @@ class SaveCatalogue:
         Final catalogue file name
     cat_size_target : int
         target catalogue size
+    w_log : logging.Logger
+        Logging instance
 
     """
 
-    def __init__(self, final_cat_file, cat_size_target):
+    def __init__(self, final_cat_file, cat_size_target, w_log):
 
         self._final_cat_file = final_cat_file
         self._cat_size_target = cat_size_target
+        self._w_log = w_log
 
     def process(
         self,
@@ -321,7 +324,7 @@ def _add2dict(self, key, value, index=None):
         else:
             self._output_dict[key] = value
 
-    def _save_ngmix_data(self, ngmix_cat_path, moments=False, w_log):
+    def _save_ngmix_data(self, ngmix_cat_path, moments=False):
         """Save NGMIX Data.
 
         Save the NGMIX catalogue into the final one.
@@ -374,7 +377,7 @@ def _save_ngmix_data(self, ngmix_cat_path, moments=False, w_log):
             f"{prefix}_FLAGS_",
             f"{prefix}_T_PSFo_",
         ):
-            self._update_dict(key_str, np.zeros(n_obj)
+            self._update_dict(key_str, np.zeros(n_obj))
         for key_str in (f"NGMIX{m}_FLUX_ERR_", f"NGMIX{m}_MAG_ERR_"):
             self._update_dict(key_str, np.ones(len(self._obj_id)) * -1)
         for key_str in (
diff --git a/shapepipe/modules/make_cat_runner.py b/shapepipe/modules/make_cat_runner.py
index abc5a03d..47ea57fe 100644
--- a/shapepipe/modules/make_cat_runner.py
+++ b/shapepipe/modules/make_cat_runner.py
@@ -97,30 +97,31 @@ def make_cat_runner(
     # Save SExtractor data
     w_log.info("Save SExtractor data")
     n_obj = make_cat.save_sextractor_data(final_cat_file, tile_sexcat_path)
+    cat_size_sextractor = n_obj
 
     # Save spread-model data
-    w_log.info("Save spread-model data")
     if sexcat_sm_path is None:
         w_log.info("No sm cat input, setting spread model to 99")
-        n_obj
-    make_cat.save_sm_data(
-        final_cat_file,
-        sexcat_sm_path,
-        do_classif,
-        star_thresh,
-        gal_thresh,
-        n_obj=n_obj
-    )
-
-    if cat_size_sextractor != cat_size_sm:
-        raise ValueError(
-            f"SExtractor catalogue {tile_sexcat_path} has different size"
-            + f" ({cat_size_sextractor} than spread_model catalogue"
-            + f" {sexcat_sm_path} ({cat_size_sm})"
+    else:
+        w_log.info("Save spread-model data")
+        cat_size_sm = make_cat.save_sm_data(
+            final_cat_file,
+            sexcat_sm_path,
+            do_classif,
+            star_thresh,
+            gal_thresh,
+            n_obj=n_obj
         )
 
+        if cat_size_sextractor != cat_size_sm:
+            w_log(
+                f"Warnign: SExtractor catalogue {tile_sexcat_path} has different size"
+                + f" ({cat_size_sextractor} than spread_model catalogue"
+                + f" {sexcat_sm_path} ({cat_size_sm})"
+            )
+
     # Save shape data
-    sc_inst = make_cat.SaveCatalogue(final_cat_file, cat_size_sextractor)
+    sc_inst = make_cat.SaveCatalogue(final_cat_file, cat_size_sextractor, w_log)
     w_log.info("Save shape measurement data")
     for shape_type in shape_type_list:
         w_log.info(f"Save {shape_type.lower()} data")