diff --git a/src/DiffResults.jl b/src/DiffResults.jl
index c440d50..609a0a1 100644
--- a/src/DiffResults.jl
+++ b/src/DiffResults.jl
@@ -124,8 +124,6 @@ end
     end
 end
 
-Base.eltype(r::DiffResult) = eltype(typeof(r))
-
 Base.eltype(::Type{D}) where {O,V,D<:DiffResult{O,V}} = eltype(V)
 
 Base.:(==)(a::DiffResult, b::DiffResult) = a.value == b.value && a.derivs == b.derivs