diff --git a/config_panel.toml b/config_panel.toml
index 40ae334..858ca17 100644
--- a/config_panel.toml
+++ b/config_panel.toml
@@ -23,11 +23,13 @@ name = "My webapp configuration"
 
         [main.php_fpm_config.phpversion]
         ask = "PHP version"
+        type = "select"
         choices = ["none", "7.3", "7.4", "8.0"]
         default = "none"
 
         [main.php_fpm_config.fpm_footprint]
         ask = "Memory footprint of the service?"
+        type = "select"
         choices = ["low", "medium", "high", "specific"]
         default = "low"
         visible = '! match(phpversion, "none")'
@@ -41,6 +43,7 @@ name = "My webapp configuration"
         help = "Free field to specify exactly the footprint in Mb if you don't want to use one of the three previous values."
 
         [main.php_fpm_config.fpm_usage]
+        type = "select"
         ask = "Expected usage of the service?"
         choices = ["low", "medium", "high"]
         default = "low"