diff --git a/rebar.config b/rebar.config
index 1f68404..bfcecec 100644
--- a/rebar.config
+++ b/rebar.config
@@ -20,7 +20,7 @@
 %% -------------------------------------------------------------------
 
 {erl_opts, [
-    {lager_extra_sinks, ['__lager_test_sink']}
+    {lager_extra_sinks, ['__lager_test_sink']},
     debug_info,
     report,
     verbose,