diff --git a/stdlib/LinearAlgebra/test/dense.jl b/stdlib/LinearAlgebra/test/dense.jl
index 116a6da1afc12..41b38f7c62cdc 100644
--- a/stdlib/LinearAlgebra/test/dense.jl
+++ b/stdlib/LinearAlgebra/test/dense.jl
@@ -84,6 +84,15 @@ bimg  = randn(n,2)/2
         end
     end # for eltyb
 
+@testset "Test diagm for vectors" begin
+    @test diagm(zeros(50)) == diagm(0 => zeros(50))
+    @test diagm(ones(50)) == diagm(0 => ones(50))
+    for i = 1:50
+        v = randn(500)
+        @test diagm(v) == diagm(0 => v)
+    end
+end
+
 @testset "Test pinv (rtol, atol)" begin
     M = [1 0 0; 0 1 0; 0 0 0]
     @test pinv(M,atol=1)== zeros(3,3)