diff --git a/install/pinchflat-install.sh b/install/pinchflat-install.sh
index 9ab440f1..6cb15da5 100644
--- a/install/pinchflat-install.sh
+++ b/install/pinchflat-install.sh
@@ -19,6 +19,7 @@ $STD apt install -y \
   build-essential \
   elixir \
   erlang-dev \
+  erlang-syntax-tools \
   git \
   libsqlite3-dev \
   locales \