diff --git a/modules/gsuite_enabled/variables.tf b/modules/gsuite_enabled/variables.tf
index 4e8b80aac..87a146daf 100644
--- a/modules/gsuite_enabled/variables.tf
+++ b/modules/gsuite_enabled/variables.tf
@@ -188,11 +188,13 @@ variable "create_group" {
 }
 
 variable "sa_group" {
+  type        = string
   description = "A G Suite group to place the default Service Account for the project in"
   default     = ""
 }
 
 variable "api_sa_group" {
+  type        = string
   description = "A G Suite group to place the Google APIs Service Account for the project in"
   default     = ""
 }