diff --git a/scripts/setup_dev_switch.sh b/scripts/setup_dev_switch.sh
index bf2c08293..5b9ea1dca 100755
--- a/scripts/setup_dev_switch.sh
+++ b/scripts/setup_dev_switch.sh
@@ -1,4 +1,4 @@
 opam switch create . ocaml-base-compiler.4.06.1
 eval $(opam env)
-opam install -y ocp-indent merlin alcotest-lwt crowbar
+opam install -y ocp-indent tuareg merlin alcotest-lwt crowbar
 opam -y user-setup install