diff --git a/src/onehot.jl b/src/onehot.jl
index 986fb9d02c..32a2a19bca 100644
--- a/src/onehot.jl
+++ b/src/onehot.jl
@@ -190,14 +190,14 @@ end
 for wrapper in [:Adjoint, :Transpose]
   @eval begin
     function Base.:*(A::$wrapper{<:Any, <:AbstractMatrix{T}}, b::OneHotVector{<:Any, L}) where {L, T}
-      size(A, 2) != L ||
+      size(A, 2) == L ||
         throw(DimensionMismatch("Matrix column must correspond with OneHot size: $(size(A, 2)) != $L"))
 
       return A[:, b.ix]
     end
 
     function Base.:*(A::$wrapper{<:Number, <:AbstractVector{T}}, b::OneHotVector{<:Any, L}) where {L, T}
-      size(A, 2) != L ||
+      size(A, 2) == L ||
         throw(DimensionMismatch("Matrix column must correspond with OneHot size: $(size(A, 2)) != $L"))
 
       return A[b.ix]