diff --git a/src/error_logger_lager_h.erl b/src/error_logger_lager_h.erl
index 4456cb0..38e27f8 100644
--- a/src/error_logger_lager_h.erl
+++ b/src/error_logger_lager_h.erl
@@ -274,6 +274,9 @@ format_mfa({M, F, A, Props}) when is_list(Props) ->
         Line ->
             [format_mfa({M, F, A}), io_lib:format(" line ~w", [Line])]
     end;
+format_mfa([{M, F, A}, _]) ->
+   %% this kind of weird stacktrace can be generated by a uncaught throw in a gen_server
+   format_mfa({M, F, A});
 format_mfa([{M, F, A, Props}, _]) when is_list(Props) ->
    %% this kind of weird stacktrace can be generated by a uncaught throw in a gen_server
    format_mfa({M, F, A, Props});
diff --git a/test/crash.erl b/test/crash.erl
index 1c22a39..e81b53c 100644
--- a/test/crash.erl
+++ b/test/crash.erl
@@ -85,7 +85,7 @@ handle_call(badarity, _, State) ->
 	F = fun(A, B, C) -> A + B + C end,
 	Res = F(State),
 	{reply, Res, State};
-handle_call(throw, _, State) ->
+handle_call(throw, _, _State) ->
 	throw(a_ball);
 handle_call(_Call, _From, State) ->
 	{reply, ok, State}.