diff --git a/setup b/setup
index dc3249e..6193bbe 100755
--- a/setup
+++ b/setup
@@ -47,6 +47,7 @@ install_ssl() {
             [ $SSL = 'libressl' ] && echo "::error:: LibreSSL is not on Debian"
             [ $SSL = 'libressl' ] && exit 1
             install_pkg openssl
+            install_pkg libssl-dev
             ;;
         "Arch Linux")
             install_pkg $SSL