diff --git a/gdk/gdkdmabuftexturebuilder.c b/gdk/gdkdmabuftexturebuilder.c
index 584370925d..d0bd18ae77 100644
--- a/gdk/gdkdmabuftexturebuilder.c
+++ b/gdk/gdkdmabuftexturebuilder.c
@@ -876,7 +876,7 @@ gdk_dmabuf_texture_builder_set_offset (GdkDmabufTextureBuilder *self,
  *
  * Gets the color state previously set via gdk_dmabuf_texture_builder_set_color_state().
  *
- * Returns: (nullable): the color state
+ * Returns: (nullable) (transfer none): the color state
  *
  * Since: 4.16
  */
diff --git a/gdk/gdkgltexturebuilder.c b/gdk/gdkgltexturebuilder.c
index 0f83086204..0c8fafefc6 100644
--- a/gdk/gdkgltexturebuilder.c
+++ b/gdk/gdkgltexturebuilder.c
@@ -647,7 +647,7 @@ gdk_gl_texture_builder_set_sync (GdkGLTextureBuilder *self,
  *
  * Gets the color state previously set via gdk_gl_texture_builder_set_color_state().
  *
- * Returns: the color state
+ * Returns: (transfer none): the color state
  *
  * Since: 4.16
  */