diff --git a/plugins/override_opts.erl b/plugins/override_opts.erl
index 1cdeca662..df875c556 100644
--- a/plugins/override_opts.erl
+++ b/plugins/override_opts.erl
@@ -2,11 +2,11 @@
 -export([preprocess/2]).
 
 override_opts(override, Config, Opts) ->
-    lists:foldl(fun({Opt, Value}, Conf) ->
+    lists:foldl(fun({Opt, [Value]}, Conf) ->
 			rebar_config:set(Conf, Opt, Value)
 		end, Config, Opts);
 override_opts(add, Config, Opts) ->
-    lists:foldl(fun({Opt, Value}, Conf) ->
+    lists:foldl(fun({Opt, [Value]}, Conf) ->
 			V = rebar_config:get_local(Conf, Opt, []),
 			rebar_config:set(Conf, Opt, [Value | V])
 		end, Config, Opts).
diff --git a/rebar.config.script b/rebar.config.script
index c69acc794..b8eeaeb11 100644
--- a/rebar.config.script
+++ b/rebar.config.script
@@ -298,8 +298,8 @@ GenDepsConfigure =
 fun(Hooks) ->
 	lists:map(fun({Pkg, Flags}) ->
 			  DepPath = ResolveDepPath("deps/" ++ Pkg ++ "/"),
-			  {add, list_to_atom(Pkg), [{pre_hooks, {'compile',
-			   lists:flatten(GenDepConfigureLine(DepPath, Flags))}}]}
+			  {add, list_to_atom(Pkg), [{pre_hooks, [{'compile',
+			   lists:flatten(GenDepConfigureLine(DepPath, Flags))}]}]}
 		  end, Hooks)
 end,