diff --git a/src/types.jl b/src/types.jl
index 3816e9e9..4a575300 100644
--- a/src/types.jl
+++ b/src/types.jl
@@ -2,7 +2,7 @@
 """
 $(TYPEDEF)
 """
-abstract type Basis{D} <: AbstractVector{SVector{D,Float64}} end
+abstract type Basis{D} <: StaticVector{D, SVector{D,Float64}} end
 for T in (:DirectBasis, :ReciprocalBasis)
     @eval begin
         @doc """