diff --git a/test/util/test_slice.scad b/test/util/test_slice.scad
index f1d8964e..dc1db3a6 100644
--- a/test/util/test_slice.scad
+++ b/test/util/test_slice.scad
@@ -1,5 +1,5 @@
-include <unittest.scad>;
-include <util/slice.scad>;
+use <unittest.scad>;
+use <util/slice.scad>;
 
 module test_slice() {
     echo("==== test_slice ====");