diff --git a/src/compositor/meta-window-actor-x11.c b/src/compositor/meta-window-actor-x11.c
index 201c3e15f..24f2a50ed 100644
--- a/src/compositor/meta-window-actor-x11.c
+++ b/src/compositor/meta-window-actor-x11.c
@@ -771,6 +771,22 @@ get_client_area_rect (MetaWindowActorX11 *actor_x11,
   get_client_area_rect_from_texture (actor_x11, stex, client_area);
 }
 
+static void
+region_to_cairo_path (MtkRegion *region,
+                      cairo_t   *cr)
+{
+  MtkRectangle rect;
+  int n_rects, i;
+
+  n_rects = mtk_region_num_rectangles (region);
+
+  for (i = 0; i < n_rects; i++)
+    {
+      rect = mtk_region_get_rectangle (region, i);
+      cairo_rectangle (cr, rect.x, rect.y, rect.width, rect.height);
+    }
+}
+
 static void
 build_and_scan_frame_mask (MetaWindowActorX11 *actor_x11,
                            MtkRegion          *shape_region)
@@ -810,7 +826,7 @@ build_and_scan_frame_mask (MetaWindowActorX11 *actor_x11,
                                                stride);
   cr = cairo_create (image);
 
-  meta_region_to_cairo_path (shape_region, cr);
+  region_to_cairo_path (shape_region, cr);
   cairo_fill (cr);
 
   if (window->frame)
@@ -842,7 +858,7 @@ build_and_scan_frame_mask (MetaWindowActorX11 *actor_x11,
       frame_paint_region = mtk_region_create_rectangle (&rect);
       mtk_region_subtract_rectangle (frame_paint_region, &client_area);
 
-      meta_region_to_cairo_path (frame_paint_region, cr);
+      region_to_cairo_path (frame_paint_region, cr);
       cairo_clip (cr);
 
       meta_frame_get_mask (window->frame, &frame_rect, cr);
diff --git a/src/compositor/region-utils.c b/src/compositor/region-utils.c
index 118e922a3..3748f92ff 100644
--- a/src/compositor/region-utils.c
+++ b/src/compositor/region-utils.c
@@ -428,22 +428,6 @@ meta_region_crop_and_scale (MtkRegion       *region,
   return viewport_region;
 }
 
-void
-meta_region_to_cairo_path (MtkRegion *region,
-                           cairo_t   *cr)
-{
-  MtkRectangle rect;
-  int n_rects, i;
-
-  n_rects = mtk_region_num_rectangles (region);
-
-  for (i = 0; i < n_rects; i++)
-    {
-      rect = mtk_region_get_rectangle (region, i);
-      cairo_rectangle (cr, rect.x, rect.y, rect.width, rect.height);
-    }
-}
-
 MtkRegion *
 meta_region_apply_matrix_transform_expand (const MtkRegion   *region,
                                            graphene_matrix_t *transform)
diff --git a/src/compositor/region-utils.h b/src/compositor/region-utils.h
index 0c847fb6e..13162429f 100644
--- a/src/compositor/region-utils.h
+++ b/src/compositor/region-utils.h
@@ -20,7 +20,6 @@
 
 #pragma once
 
-#include <cairo.h>
 #include <glib.h>
 
 #include "backends/meta-backend-types.h"
@@ -111,8 +110,6 @@ MtkRegion * meta_region_crop_and_scale (MtkRegion       *region,
                                         int              dst_width,
                                         int              dst_height);
 
-void meta_region_to_cairo_path (MtkRegion *region,
-                                cairo_t   *cr);
 
 MtkRegion *
 meta_region_apply_matrix_transform_expand (const MtkRegion   *region,