diff --git a/pgo/pgo.c b/pgo/pgo.c
index aab18847..24154277 100644
--- a/pgo/pgo.c
+++ b/pgo/pgo.c
@@ -72,6 +72,8 @@ void render_refresh_title(struct terminal *term) {}
 void render_refresh_app_id(struct terminal *term) {}
 void render_refresh_icon(struct terminal *term) {}
 
+void render_overlay(struct terminal *term) {}
+
 bool
 render_xcursor_is_valid(const struct seat *seat, const char *cursor)
 {
diff --git a/render.c b/render.c
index 5a924743..020dee79 100644
--- a/render.c
+++ b/render.c
@@ -1862,7 +1862,7 @@ render_overlay_single_pixel(struct terminal *term, enum overlay_style style,
     }
 }
 
-static void
+void
 render_overlay(struct terminal *term)
 {
     struct wayl_sub_surface *overlay = &term->window->overlay;
diff --git a/render.h b/render.h
index 1898351c..81d2a905 100644
--- a/render.h
+++ b/render.h
@@ -31,6 +31,8 @@ bool render_xcursor_set(
     struct seat *seat, struct terminal *term, enum cursor_shape shape);
 bool render_xcursor_is_valid(const struct seat *seat, const char *cursor);
 
+void render_overlay(struct terminal *term);
+
 struct render_worker_context {
     int my_id;
     struct terminal *term;