diff --git a/modoboa_installer/database.py b/modoboa_installer/database.py
index 41b79df..7be3e53 100644
--- a/modoboa_installer/database.py
+++ b/modoboa_installer/database.py
@@ -147,7 +147,7 @@ class MySQL(Database):
     """MySQL backend."""
 
     packages = {
-        "deb": ["mariadb-server"],
+        "deb": ["mariadb-server", "libmysqlclient-dev"],
         "rpm": ["mariadb", "mariadb-devel", "mariadb-server"],
     }
     service = "mariadb"
diff --git a/modoboa_installer/scripts/postwhite.py b/modoboa_installer/scripts/postwhite.py
index 239d2d3..039bd11 100644
--- a/modoboa_installer/scripts/postwhite.py
+++ b/modoboa_installer/scripts/postwhite.py
@@ -20,6 +20,7 @@ class Postwhite(base.Installer):
     ]
     no_daemon = True
     packages = {
+        "deb": ["bind9-host"],
         "rpm": ["bind-utils"]
     }