diff --git a/base/reflection.jl b/base/reflection.jl
index 46f268feb9e0c..abf5268922933 100644
--- a/base/reflection.jl
+++ b/base/reflection.jl
@@ -903,7 +903,7 @@ uncompressed_ast(m::Method) = isdefined(m, :source) ? _uncompressed_ast(m, m.sou
                               error("Code for this Method is not available.")
 _uncompressed_ast(m::Method, s::CodeInfo) = copy(s)
 _uncompressed_ast(m::Method, s::Array{UInt8,1}) = ccall(:jl_uncompress_ast, Any, (Any, Ptr{Cvoid}, Any), m, C_NULL, s)::CodeInfo
-_uncompressed_ast(m::Core.CodeInstance, s::Array{UInt8,1}) = ccall(:jl_uncompress_ast, Any, (Any, Ptr{Cvoid}, Any), li.def.def::Method, li, s)::CodeInfo
+_uncompressed_ast(ci::Core.CodeInstance, s::Array{UInt8,1}) = ccall(:jl_uncompress_ast, Any, (Any, Any, Any), ci.def.def::Method, ci, s)::CodeInfo
 
 function method_instances(@nospecialize(f), @nospecialize(t), world::UInt = typemax(UInt))
     tt = signature_type(f, t)