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-rw-r--r--gtk/gtktreeviewcolumn.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/gtk/gtktreeviewcolumn.c b/gtk/gtktreeviewcolumn.c
index 61355139c..18a336308 100644
--- a/gtk/gtktreeviewcolumn.c
+++ b/gtk/gtktreeviewcolumn.c
@@ -1470,7 +1470,7 @@ gtk_tree_view_column_get_width (GtkTreeViewColumn *tree_column)
/**
* gtk_tree_view_column_set_fixed_width:
* @tree_column: A #GtkTreeViewColumn.
- * @fixed_width: The size to set the @tree_column to.
+ * @fixed_width: The size to set the @tree_column to. Must be greater than 0.
*
* Sets the size of the column in pixels. This is meaningful only if the sizing
* type is #GTK_TREE_VIEW_COLUMN_FIXED. In this case, the value is discarded