diff --git a/compute_operation.go b/compute_operation.go
index 66398f9f..ab76895e 100644
--- a/compute_operation.go
+++ b/compute_operation.go
@@ -63,7 +63,7 @@ func (w *ComputeOperationWaiter) RefreshFunc() resource.StateRefreshFunc {
 func (w *ComputeOperationWaiter) Conf() *resource.StateChangeConf {
 	return &resource.StateChangeConf{
 		Pending: []string{"PENDING", "RUNNING"},
-		Target:  "DONE",
+		Target:  []string{"DONE"},
 		Refresh: w.RefreshFunc(),
 	}
 }
diff --git a/dns_change.go b/dns_change.go
index a1facdd9..38a34135 100644
--- a/dns_change.go
+++ b/dns_change.go
@@ -32,7 +32,7 @@ func (w *DnsChangeWaiter) RefreshFunc() resource.StateRefreshFunc {
 func (w *DnsChangeWaiter) Conf() *resource.StateChangeConf {
 	return &resource.StateChangeConf{
 		Pending: []string{"pending"},
-		Target:  "done",
+		Target:  []string{"done"},
 		Refresh: w.RefreshFunc(),
 	}
 }
diff --git a/resource_container_cluster.go b/resource_container_cluster.go
index 447583b9..84164401 100644
--- a/resource_container_cluster.go
+++ b/resource_container_cluster.go
@@ -281,7 +281,7 @@ func resourceContainerClusterCreate(d *schema.ResourceData, meta interface{}) er
 	// Wait until it's created
 	wait := resource.StateChangeConf{
 		Pending:    []string{"PENDING", "RUNNING"},
-		Target:     "DONE",
+		Target:     []string{"DONE"},
 		Timeout:    30 * time.Minute,
 		MinTimeout: 3 * time.Second,
 		Refresh: func() (interface{}, string, error) {
@@ -373,7 +373,7 @@ func resourceContainerClusterUpdate(d *schema.ResourceData, meta interface{}) er
 	// Wait until it's updated
 	wait := resource.StateChangeConf{
 		Pending:    []string{"PENDING", "RUNNING"},
-		Target:     "DONE",
+		Target:     []string{"DONE"},
 		Timeout:    10 * time.Minute,
 		MinTimeout: 2 * time.Second,
 		Refresh: func() (interface{}, string, error) {
@@ -413,7 +413,7 @@ func resourceContainerClusterDelete(d *schema.ResourceData, meta interface{}) er
 	// Wait until it's deleted
 	wait := resource.StateChangeConf{
 		Pending:    []string{"PENDING", "RUNNING"},
-		Target:     "DONE",
+		Target:     []string{"DONE"},
 		Timeout:    10 * time.Minute,
 		MinTimeout: 3 * time.Second,
 		Refresh: func() (interface{}, string, error) {
diff --git a/sqladmin_operation.go b/sqladmin_operation.go
index 4fc80204..05a2931b 100644
--- a/sqladmin_operation.go
+++ b/sqladmin_operation.go
@@ -37,7 +37,7 @@ func (w *SqlAdminOperationWaiter) RefreshFunc() resource.StateRefreshFunc {
 func (w *SqlAdminOperationWaiter) Conf() *resource.StateChangeConf {
 	return &resource.StateChangeConf{
 		Pending: []string{"PENDING", "RUNNING"},
-		Target:  "DONE",
+		Target:  []string{"DONE"},
 		Refresh: w.RefreshFunc(),
 	}
 }