diff --git a/src/PyCall.jl b/src/PyCall.jl
index ebef0a54..c0fbd1e7 100644
--- a/src/PyCall.jl
+++ b/src/PyCall.jl
@@ -312,6 +312,14 @@ function setindex!(o::PyObject, v, s::Union{Symbol,AbstractString})
     o
 end
 
+function setproperty!(o::PyObject, s::Symbol, v)
+    if s == :o
+        setfield(o, s, v)
+    else
+        setindex!(o, v, s)
+    end
+end
+
 function haskey(o::PyObject, s::Union{Symbol,AbstractString})
     if ispynull(o)
         throw(ArgumentError("haskey of NULL PyObject"))