diff --git a/Erlang.gitignore b/Erlang.gitignore
index 3826c857..751a61d1 100644
--- a/Erlang.gitignore
+++ b/Erlang.gitignore
@@ -1,10 +1,17 @@
 .eunit
-deps
 *.o
 *.beam
 *.plt
 erl_crash.dump
-ebin/*.beam
-rel/example_project
 .concrete/DEV_MODE
+
+# rebar 2.x
 .rebar
+rel/example_project
+ebin/*.beam
+deps
+
+# rebar 3
+.rebar3
+_build/
+_checkouts/