diff --git a/include/wlr/types/wlr_buffer.h b/include/wlr/types/wlr_buffer.h
index d23cdce8..e64e60c8 100644
--- a/include/wlr/types/wlr_buffer.h
+++ b/include/wlr/types/wlr_buffer.h
@@ -151,7 +151,7 @@ bool wlr_resource_is_buffer(struct wl_resource *resource);
  * Get the size of a wl_buffer resource.
  */
 bool wlr_resource_get_buffer_size(struct wl_resource *resource,
-	struct wlr_renderer *renderer, int *width, int *height);
+	int *width, int *height);
 /**
  * Import a client buffer and lock it.
  *
diff --git a/types/wlr_buffer.c b/types/wlr_buffer.c
index 2c9530d1..59c36f6b 100644
--- a/types/wlr_buffer.c
+++ b/types/wlr_buffer.c
@@ -105,7 +105,7 @@ bool wlr_resource_is_buffer(struct wl_resource *resource) {
 }
 
 bool wlr_resource_get_buffer_size(struct wl_resource *resource,
-		struct wlr_renderer *renderer, int *width, int *height) {
+		int *width, int *height) {
 	assert(wlr_resource_is_buffer(resource));
 
 	struct wl_shm_buffer *shm_buf = wl_shm_buffer_get(resource);
diff --git a/types/wlr_surface.c b/types/wlr_surface.c
index 555859d9..105b820f 100644
--- a/types/wlr_surface.c
+++ b/types/wlr_surface.c
@@ -172,7 +172,7 @@ static void surface_state_finalize(struct wlr_surface *surface,
 	if ((state->committed & WLR_SURFACE_STATE_BUFFER)) {
 		if (state->buffer_resource != NULL) {
 			wlr_resource_get_buffer_size(state->buffer_resource,
-				surface->renderer, &state->buffer_width, &state->buffer_height);
+				&state->buffer_width, &state->buffer_height);
 		} else {
 			state->buffer_width = state->buffer_height = 0;
 		}