diff --git a/src/sugar.jl b/src/sugar.jl
index f30775883c..574ffa8cbf 100644
--- a/src/sugar.jl
+++ b/src/sugar.jl
@@ -899,7 +899,7 @@ this function will retun an AbstractArray of shape `size(output)` of values of t
             Core.Typeof(f)
         end
 
-        rt = Compiler.primal_return_type(mode, FRT, tt)
+        rt = Compiler.primal_return_type(Reverse, FRT, tt)
 
         ModifiedBetweenT = (false, false)
         FA = Const{FRT}