diff --git a/Project.toml b/Project.toml
index 4da61866..7cb0ab7b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "DynamicalSystemsBase"
 uuid = "6e36e845-645a-534a-86f2-f5d4aa5a06b4"
 repo = "https://github.com/JuliaDynamics/DynamicalSystemsBase.jl.git"
-version = "3.2.1"
+version = "3.2.2"
 
 [deps]
 ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
diff --git a/src/derived_systems/poincare/hyperplane.jl b/src/derived_systems/poincare/hyperplane.jl
index d8405a57..e1d21cf2 100644
--- a/src/derived_systems/poincare/hyperplane.jl
+++ b/src/derived_systems/poincare/hyperplane.jl
@@ -120,6 +120,7 @@ function poincaresos(A::StateSpaceSet, planecrossing::PlaneCrossing, j)
     return data
 end
 
+using LinearAlgebra
 function interpolate_crossing(A, B, pc::PlaneCrossing{<:AbstractVector})
     # https://en.wikipedia.org/wiki/Line%E2%80%93plane_intersection
     t = LinearAlgebra.dot(pc.n, (pc.p₀ .- A))/LinearAlgebra.dot((B .- A), pc.n)
diff --git a/test/poincare.jl b/test/poincare.jl
index b42e0c7a..7828bf74 100644
--- a/test/poincare.jl
+++ b/test/poincare.jl
@@ -96,4 +96,9 @@ end
     A = poincaresos(X, plane1)
     @test dimension(A) == 3
     @test all(x -> abs(x) < 1e-12, A[:, 1])
+    vec_plane = [1.0,0.0,0.0,0.0]
+    B = poincaresos(X, vec_plane)
+    @test dimension(B) == 3
+    @test all(x -> abs(x) < 1e-12, B[:, 1])
+    @test vec(A) == vec(B)
 end