diff --git a/builtin/providers/aws/resource_aws_sqs_queue_policy.go b/builtin/providers/aws/resource_aws_sqs_queue_policy.go
index ab12ec269..343249799 100644
--- a/builtin/providers/aws/resource_aws_sqs_queue_policy.go
+++ b/builtin/providers/aws/resource_aws_sqs_queue_policy.go
@@ -27,6 +27,7 @@ func resourceAwsSqsQueuePolicy() *schema.Resource {
 			"policy": &schema.Schema{
 				Type:             schema.TypeString,
 				Required:         true,
+				ValidateFunc:     validateJsonString,
 				DiffSuppressFunc: suppressEquivalentAwsPolicyDiffs,
 			},
 		},