diff --git a/core/installer/schema.go b/core/installer/schema.go
index 2b150a6..e575aa5 100644
--- a/core/installer/schema.go
+++ b/core/installer/schema.go
@@ -12,20 +12,21 @@
 type Kind int
 
 const (
-	KindBoolean      Kind = 0
-	KindInt               = 7
-	KindString            = 1
-	KindStruct            = 2
-	KindNetwork           = 3
-	KindMultiNetwork      = 10
-	KindAuth              = 5
-	KindSSHKey            = 6
-	KindNumber            = 4
-	KindArrayString       = 8
-	KindPort              = 9
-	KindVPNAuthKey        = 11
-	KindCluster           = 12
-	KindPassword          = 13
+	KindBoolean         Kind = 0
+	KindInt                  = 7
+	KindString               = 1
+	KindStruct               = 2
+	KindNetwork              = 3
+	KindMultiNetwork         = 10
+	KindAuth                 = 5
+	KindSSHKey               = 6
+	KindNumber               = 4
+	KindArrayString          = 8
+	KindPort                 = 9
+	KindVPNAuthKey           = 11
+	KindCluster              = 12
+	KindPassword             = 13
+	KindSketchSessionId      = 14
 )
 
 type Field struct {
@@ -309,6 +310,8 @@
 		if role == "password" {
 			// TODO(gio): implement configurable requirements such as min-length, ...
 			return basicSchema{name, KindPassword, false, nil}, nil
+		} else if role == "sketch-session-id" {
+			return basicSchema{name, KindSketchSessionId, false, nil}, nil
 		} else if role == "vpnauthkey" {
 			meta := map[string]string{}
 			usernameFieldAttr := v.Attribute("usernameField")