1 files changed, 1 insertions, 0 deletions
diff --git a/bootstrap b/bootstrap
index 9675e1d..5899e9b 100755
--- a/bootstrap
+++ b/bootstrap
@@ -571,6 +571,7 @@ additional_defines() ->
     [{d, D} || {Re, D} <- [{"^[0-9]+", namespaced_types},
                            {"^R1[4|5]", deprecated_crypto},
                            {"^2", unicode_str},
+                           {"^(R|1|20)", fun_stacktrace},
                            {"^((1[8|9])|2)", rand_module}],
                is_otp_release(Re)].