diff --git a/.gitmodules b/.gitmodules
index fcc1d38..27ac775 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -376,3 +376,6 @@
 [submodule "ruby-nenv"]
 	path = ruby-nenv
 	url = ssh://aur@aur.archlinux.org/ruby-nenv.git
+[submodule "ruby-lumberjack"]
+	path = ruby-lumberjack
+	url = ssh://aur@aur.archlinux.org/ruby-lumberjack.git
diff --git a/ruby-lumberjack b/ruby-lumberjack
new file mode 160000
index 0000000..47b3e76
--- /dev/null
+++ b/ruby-lumberjack
@@ -0,0 +1 @@
+Subproject commit 47b3e76c4a1d503f1612445859d7d939e88a2aeb