diff --git a/clutter/clutter-bezier.c b/clutter/clutter-bezier.c
index 3c2f827a4..f4c480c1d 100644
--- a/clutter/clutter-bezier.c
+++ b/clutter/clutter-bezier.c
@@ -153,7 +153,7 @@ _clutter_bezier_t2x (const ClutterBezier * b, _FixedT t)
     + b->dx;
 }
 
-gint
+static gint
 _clutter_bezier_t2y (const ClutterBezier * b, _FixedT t)
 {
   /*
diff --git a/clutter/cogl/cogl/cogl-clip-stack.c b/clutter/cogl/cogl/cogl-clip-stack.c
index 87a216378..946790e9f 100644
--- a/clutter/cogl/cogl/cogl-clip-stack.c
+++ b/clutter/cogl/cogl/cogl-clip-stack.c
@@ -285,7 +285,7 @@ set_clip_planes (float x_1,
     }
 }
 
-void
+static void
 add_stencil_clip_rectangle (float x_1,
                             float y_1,
                             float x_2,
diff --git a/clutter/cogl/cogl/cogl-clip-state.c b/clutter/cogl/cogl/cogl-clip-state.c
index 41ad06237..bb8ec1ee5 100644
--- a/clutter/cogl/cogl/cogl-clip-state.c
+++ b/clutter/cogl/cogl/cogl-clip-state.c
@@ -118,7 +118,7 @@ transform_point (CoglMatrix *matrix_mv,
 
 /* Try to push a rectangle given in object coordinates as a rectangle in window
  * coordinates instead of object coordinates */
-gboolean
+static gboolean
 try_pushing_rect_as_window_rect (float x_1,
                                  float y_1,
                                  float x_2,