diff --git a/libweston/renderer-gl/gl-renderer.c b/libweston/renderer-gl/gl-renderer.c
index 3769c721..77022df1 100644
--- a/libweston/renderer-gl/gl-renderer.c
+++ b/libweston/renderer-gl/gl-renderer.c
@@ -3021,9 +3021,9 @@ gl_renderer_surface_copy_content(struct weston_surface *surface,
 	glViewport(0, 0, cw, ch);
 	glDisable(GL_BLEND);
 	if (gs->y_inverted)
-		memcpy(sconf.projection.d, projmat_normal, sizeof projmat_normal);
+		ARRAY_COPY(sconf.projection.d, projmat_normal);
 	else
-		memcpy(sconf.projection.d, projmat_yinvert, sizeof projmat_yinvert);
+		ARRAY_COPY(sconf.projection.d, projmat_yinvert);
 	sconf.projection.type = WESTON_MATRIX_TRANSFORM_SCALE |
 				WESTON_MATRIX_TRANSFORM_TRANSLATE;
 
diff --git a/tests/vertex-clip-test.c b/tests/vertex-clip-test.c
index ce876cec..3e62412c 100644
--- a/tests/vertex-clip-test.c
+++ b/tests/vertex-clip-test.c
@@ -176,8 +176,8 @@ static void
 deep_copy_polygon8(const struct polygon8 *src, struct polygon8 *dst)
 {
 	dst->n = src->n;
-	memcpy((void *) dst->x, src->x, sizeof (src->x));
-	memcpy((void *) dst->y, src->y, sizeof (src->y));
+	ARRAY_COPY(dst->x, src->x);
+	ARRAY_COPY(dst->y, src->y);
 }
 
 TEST_P(clip_polygon_n_vertices_emitted, test_data)