diff --git a/NDTensors/src/SmallVectors/src/SmallVectors.jl b/NDTensors/src/SmallVectors/src/SmallVectors.jl
index 908c498724..04c0d6de4f 100644
--- a/NDTensors/src/SmallVectors/src/SmallVectors.jl
+++ b/NDTensors/src/SmallVectors/src/SmallVectors.jl
@@ -1,9 +1,6 @@
 module SmallVectors
   using StaticArrays
 
-  include("StaticArraysExt.jl")
-  using .StaticArraysExt
-
   export SmallVector, MSmallVector, SubSmallVector
 
   struct NotImplemented <: Exception
@@ -11,10 +8,6 @@ module SmallVectors
   end
   NotImplemented() = NotImplemented("Not implemented.")
 
-  struct BufferDimensionMismatch <: Exception
-    msg::String
-  end
-
   include("abstractsmallvector/abstractsmallvector.jl")
   include("abstractsmallvector/deque.jl")
   include("msmallvector/msmallvector.jl")