diff --git a/julia/ImmutableOrientedShape.jl b/julia/ImmutableOrientedShape.jl
index 6ab7d49..dbd6316 100644
--- a/julia/ImmutableOrientedShape.jl
+++ b/julia/ImmutableOrientedShape.jl
@@ -15,4 +15,6 @@ function Base.==(X::ImmutableOrientedShape, Y::ImmutableOrientedShape)
     else
         return true
     end
-end
\ No newline at end of file
+end
+
+Base.isequal(X:ImmutableOrientedShape, Y::ImmutableOrientedShape) = X == Y