diff --git a/.irbrc b/.irbrc
new file mode 100644
index 0000000..04e8cd5
--- /dev/null
+++ b/.irbrc
@@ -0,0 +1,2 @@
+IRB.conf[:COMPLETOR] = :type
+
diff --git a/setup.sh b/setup.sh
index bd84438..4f6a25d 100755
--- a/setup.sh
+++ b/setup.sh
@@ -2,7 +2,7 @@
 
 set -u
 
-DOT_FILES=( .bash_profile .bashrc .gitconfig .vimrc .vim .bundle .gitignore_global .zlogin .zlogout .zprofile .zshenv .zshrc .tigrc .ideavimrc )
+DOT_FILES=( .bash_profile .bashrc .gitconfig .vimrc .vim .bundle .gitignore_global .zlogin .zlogout .zprofile .zshenv .zshrc .tigrc .ideavimrc .irbrc )
 
 for file in ${DOT_FILES[@]}
 do