diff --git a/azurerm/helpers/azure/resource_group.go b/azurerm/helpers/azure/resource_group.go
index a1dc5dc522ca..9a15422613a7 100644
--- a/azurerm/helpers/azure/resource_group.go
+++ b/azurerm/helpers/azure/resource_group.go
@@ -30,8 +30,9 @@ func SchemaResourceGroupNameDiffSuppress() *schema.Schema {
 
 func SchemaResourceGroupNameForDataSource() *schema.Schema {
 	return &schema.Schema{
-		Type:     schema.TypeString,
-		Required: true,
+		Type:         schema.TypeString,
+		Required:     true,
+		ValidateFunc: validateResourceGroupName,
 	}
 }