diff --git a/src/CircularArrays.jl b/src/CircularArrays.jl
index 5e94245..ce291bc 100644
--- a/src/CircularArrays.jl
+++ b/src/CircularArrays.jl
@@ -28,6 +28,14 @@ Alias for [`CircularArray{T,1,A}`](@ref).
 """
 const CircularVector{T} = CircularArray{T, 1}
 
+"""
+    CircularMatrix{T,A} <: AbstractMatrix{T}
+
+Two-dimensional array backed by an `AbstractArray{T, 2}` of type `A` with fixed size and circular indexing.
+Alias for [`CircularArray{T,2,A}`](@ref).
+"""
+const CircularMatrix{T} = CircularArray{T, 2}
+
 """
     CircularArray(data)