diff --git a/builtin/providers/aws/resource_aws_instance.go b/builtin/providers/aws/resource_aws_instance.go
index f9f2a29d7..198a23c5b 100644
--- a/builtin/providers/aws/resource_aws_instance.go
+++ b/builtin/providers/aws/resource_aws_instance.go
@@ -1085,5 +1085,6 @@ func iamInstanceProfileArnToName(ip *ec2.IamInstanceProfile) string {
 	if ip == nil || ip.Arn == nil {
 		return ""
 	}
-	return strings.Split(*ip.Arn, "/")[1]
+	parts := strings.Split(*ip.Arn, "/")
+	return parts[len(parts)-1]
 }