diff --git a/test/runtests.jl b/test/runtests.jl
index 590db00..7bd0150 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -4,6 +4,7 @@ using Test
 @testset "AtomsBuilder.jl" begin
     # Write your tests here.
     @testset "bulk" begin include("test_bulk.jl"); end
+    @testset "utils" begin include("test_utils.jl"); end
 end