diff --git a/gtk/gtktreeviewcolumn.c b/gtk/gtktreeviewcolumn.c
index f104d1c2db..6b86fd32e5 100644
--- a/gtk/gtktreeviewcolumn.c
+++ b/gtk/gtktreeviewcolumn.c
@@ -2915,7 +2915,7 @@ _gtk_tree_view_column_cell_get_dirty (GtkTreeViewColumn  *tree_column)
  * gtk_tree_view_column_cell_get_position:
  * @tree_column: a #GtkTreeViewColumn
  * @cell_renderer: a #GtkCellRenderer
- * @start_pos: return location for the horizontal position of @cell within
+ * @x_offset: return location for the horizontal position of @cell within
  *            @tree_column, may be %NULL
  * @width: return location for the width of @cell, may be %NULL
  *
@@ -2928,7 +2928,7 @@ _gtk_tree_view_column_cell_get_dirty (GtkTreeViewColumn  *tree_column)
 gboolean
 gtk_tree_view_column_cell_get_position (GtkTreeViewColumn *tree_column,
 					GtkCellRenderer   *cell_renderer,
-					gint              *start_pos,
+					gint              *x_offset,
 					gint              *width)
 {
   GtkTreeViewColumnPrivate *priv;
@@ -2948,8 +2948,8 @@ gtk_tree_view_column_cell_get_position (GtkTreeViewColumn *tree_column,
                                      &zero_cell_area,
                                      &allocation);
 
-  if (start_pos)
-    *start_pos = allocation.x;
+  if (x_offset)
+    *x_offset = allocation.x;
   if (width)
     *width = allocation.width;
 
diff --git a/gtk/gtktreeviewcolumn.h b/gtk/gtktreeviewcolumn.h
index ac2807ba5b..c056898f0e 100644
--- a/gtk/gtktreeviewcolumn.h
+++ b/gtk/gtktreeviewcolumn.h
@@ -210,7 +210,7 @@ void                    gtk_tree_view_column_focus_cell          (GtkTreeViewCol
 								  GtkCellRenderer         *cell);
 gboolean                gtk_tree_view_column_cell_get_position   (GtkTreeViewColumn       *tree_column,
 					                          GtkCellRenderer         *cell_renderer,
-					                          gint                    *start_pos,
+					                          gint                    *x_offset,
 					                          gint                    *width);
 void                    gtk_tree_view_column_queue_resize        (GtkTreeViewColumn       *tree_column);
 GtkWidget              *gtk_tree_view_column_get_tree_view       (GtkTreeViewColumn       *tree_column);