diff --git a/ChangeLog b/ChangeLog
index cfbbe8bff..739f53e4e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2008-01-08  Emmanuele Bassi  <ebassi@openedhand.com>
+
+	* clutter/clutter-model.c:
+	(clutter_model_appendv),
+	(clutter_model_prependv): Fix the columns length pre-condition
+
 2008-01-07  Emmanuele Bassi  <ebassi@openedhand.com>
 
 	* clutter/clutter-model-default.[ch]: Remove the ClutterModelDefault
diff --git a/clutter/clutter-model.c b/clutter/clutter-model.c
index 9f981b1b8..262fea884 100644
--- a/clutter/clutter-model.c
+++ b/clutter/clutter-model.c
@@ -798,7 +798,7 @@ clutter_model_appendv (ClutterModel *model,
   gboolean resort = FALSE;
 
   g_return_if_fail (CLUTTER_IS_MODEL (model));
-  g_return_if_fail (n_columns < clutter_model_get_n_columns (model));
+  g_return_if_fail (n_columns <= clutter_model_get_n_columns (model));
   g_return_if_fail (columns != NULL);
   g_return_if_fail (values != NULL);
 
@@ -889,7 +889,7 @@ clutter_model_prependv (ClutterModel *model,
   gboolean resort = FALSE;
 
   g_return_if_fail (CLUTTER_IS_MODEL (model));
-  g_return_if_fail (n_columns < clutter_model_get_n_columns (model));
+  g_return_if_fail (n_columns <= clutter_model_get_n_columns (model));
   g_return_if_fail (columns != NULL);
   g_return_if_fail (values != NULL);