diff --git a/src/FixedSizeArrays.jl b/src/FixedSizeArrays.jl
index 41c15489..ff83330a 100644
--- a/src/FixedSizeArrays.jl
+++ b/src/FixedSizeArrays.jl
@@ -6,7 +6,7 @@ etc, using StaticArrays as a backend.
 The type definitions are not "perfect" matches because the type parameters are
 different. However, it should cover common method signatures and constructors.
 """
-module FixedSizeArrays
+module FixedSizeArraysWillBeRemoved
 
 using ..StaticArrays
 
@@ -187,3 +187,6 @@ end
 @fixed_vector Point StaticVector
 
 end
+
+Base.@deprecate_binding FixedSizeArrays FixedSizeArraysWillBeRemoved #=
+    =# false "StaticArrays.FixedSizeArrays is deprecated. Use StaticArrays directly."
diff --git a/src/ImmutableArrays.jl b/src/ImmutableArrays.jl
index 402e3630..dd981b11 100644
--- a/src/ImmutableArrays.jl
+++ b/src/ImmutableArrays.jl
@@ -1,4 +1,4 @@
-module ImmutableArrays
+module ImmutableArraysWillBeRemoved
 
 using ..StaticArrays
 
@@ -34,3 +34,6 @@ export Vector1,   Vector2,   Vector3,   Vector4,
        Matrix4x1, Matrix4x2, Matrix4x3, Matrix4x4
 
 end # module
+
+Base.@deprecate_binding ImmutableArrays ImmutableArraysWillBeRemoved #=
+    =# false "StaticArrays.ImmutableArrays is deprecated. Use StaticArrays directly."