diff --git a/src/PyPlot.jl b/src/PyPlot.jl
index e80db2f..341aa6d 100755
--- a/src/PyPlot.jl
+++ b/src/PyPlot.jl
@@ -73,7 +73,7 @@ convert(::Type{Figure}, o::PyObject) = Figure(o)
 ==(f::Figure, g::Figure) = PyObject(f) == PyObject(g)
 ==(f::Figure, g::PyObject) = PyObject(f) == g
 ==(f::PyObject, g::Figure) = f == PyObject(g)
-hash(f::Figure) = hash(PyObject(f))
+hash(f::Figure, h::UInt) = hash(PyObject(f), h)
 pycall(f::Figure, args...; kws...) = pycall(PyObject(f), args...; kws...)
 (f::Figure)(args...; kws...) = pycall(PyObject(f), PyAny, args...; kws...)
 Base.Docs.doc(f::Figure) = Base.Docs.doc(PyObject(f))
diff --git a/src/colormaps.jl b/src/colormaps.jl
index 4a2ccdc..adaab6e 100644
--- a/src/colormaps.jl
+++ b/src/colormaps.jl
@@ -16,7 +16,7 @@ convert(::Type{ColorMap}, o::PyObject) = ColorMap(o)
 ==(c::ColorMap, g::ColorMap) = PyObject(c) == PyObject(g)
 ==(c::PyObject, g::ColorMap) = c == PyObject(g)
 ==(c::ColorMap, g::PyObject) = PyObject(c) == g
-hash(c::ColorMap) = hash(PyObject(c))
+hash(c::ColorMap, h::UInt) = hash(PyObject(c), h)
 pycall(c::ColorMap, args...; kws...) = pycall(PyObject(c), args...; kws...)
 (c::ColorMap)(args...; kws...) = pycall(PyObject(c), PyAny, args...; kws...)
 Base.Docs.doc(c::ColorMap) = Base.Docs.doc(PyObject(c))