diff --git a/test/test_Quaternion.jl b/test/test_Quaternion.jl
index 23ad9ade..6a9b630c 100644
--- a/test/test_Quaternion.jl
+++ b/test/test_Quaternion.jl
@@ -138,7 +138,7 @@ for _ in 1:100
         @test q ⊗ slerp(q1, q2, t) ≈ slerp(q ⊗ q1, q ⊗ q2, t)
         @test q ⊗ linpol(q1, q2, t) ≈ linpol(q ⊗ q1, q ⊗ q2, t)
     end
-    let # test matrix exponential
+    @testset "exp(::Matrix{Quaternion})" begin  # test matrix exponential
         z = zeros(Quaternion{Float64}, 3, 3)
         id = Matrix{Quaternion{Float64}}(I, 3, 3)
         d = [Quaternion(randn(4)...) for i in 1:3]