diff --git a/rebar.config b/rebar.config
index 512e45f68..e0058adef 100644
--- a/rebar.config
+++ b/rebar.config
@@ -106,6 +106,7 @@
             {if_var_true, sip, {d, 'SIP'}},
             {if_var_true, stun, {d, 'STUN'}},
             {if_have_fun, {erl_error, format_exception, 6}, {d, 'HAVE_ERL_ERROR'}},
+            {if_rebar3, {extra_src_dirs, [sql]}},
             {src_dirs, [src,
                         {if_var_true, tools, tools},
                         {if_var_true, elixir, include}]}]}.