diff --git a/test/interp.jl b/test/interp.jl
index d2f7c4a6..cbdeb7c5 100644
--- a/test/interp.jl
+++ b/test/interp.jl
@@ -13,7 +13,7 @@ k = kde((X,Y))
 # Try to evaluate the KDE outside the interpolation domain
 # The KDE is allowed to be zero, but it should not be greater than the exact solution
 k = kde([0.0], bandwidth=1.0)
-@test pdf(k, k.x) ≈ k.density
+@test pdf.(k, k.x) ≈ k.density
 @test pdf(k, -10.0) ≤ pdf(Normal(), -10.0)
 @test pdf(k, +10.0) ≤ pdf(Normal(), +10.0)