diff --git a/test/sphere.jl b/test/sphere.jl
index 481b2b0..3102630 100644
--- a/test/sphere.jl
+++ b/test/sphere.jl
@@ -137,6 +137,7 @@ end
 
 # Inverse of distance/azimuth is reckon
 @testset "Reckon vectors ($T)" for T in NumTypes
+    Random.seed!(1234)
     local pi = T(π)
     atol = max(eps(1π), eps(T(π)))