diff --git a/.changelog/6938.txt b/.changelog/6938.txt
new file mode 100644
index 00000000000..5f434162333
--- /dev/null
+++ b/.changelog/6938.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+compute: fixed `google_compute_router_nat` so that `enable_dynamic_port_allocation` can be set to false
+```
diff --git a/google/resource_compute_router_nat.go b/google/resource_compute_router_nat.go
index c72e9423a70..aee5609fe3c 100644
--- a/google/resource_compute_router_nat.go
+++ b/google/resource_compute_router_nat.go
@@ -513,7 +513,7 @@ func resourceComputeRouterNatCreate(d *schema.ResourceData, meta interface{}) er
 	enableDynamicPortAllocationProp, err := expandNestedComputeRouterNatEnableDynamicPortAllocation(d.Get("enable_dynamic_port_allocation"), d, config)
 	if err != nil {
 		return err
-	} else if v, ok := d.GetOkExists("enable_dynamic_port_allocation"); !isEmptyValue(reflect.ValueOf(enableDynamicPortAllocationProp)) && (ok || !reflect.DeepEqual(v, enableDynamicPortAllocationProp)) {
+	} else if v, ok := d.GetOkExists("enable_dynamic_port_allocation"); ok || !reflect.DeepEqual(v, enableDynamicPortAllocationProp) {
 		obj["enableDynamicPortAllocation"] = enableDynamicPortAllocationProp
 	}
 	udpIdleTimeoutSecProp, err := expandNestedComputeRouterNatUdpIdleTimeoutSec(d.Get("udp_idle_timeout_sec"), d, config)
@@ -776,7 +776,7 @@ func resourceComputeRouterNatUpdate(d *schema.ResourceData, meta interface{}) er
 	enableDynamicPortAllocationProp, err := expandNestedComputeRouterNatEnableDynamicPortAllocation(d.Get("enable_dynamic_port_allocation"), d, config)
 	if err != nil {
 		return err
-	} else if v, ok := d.GetOkExists("enable_dynamic_port_allocation"); !isEmptyValue(reflect.ValueOf(v)) && (ok || !reflect.DeepEqual(v, enableDynamicPortAllocationProp)) {
+	} else if v, ok := d.GetOkExists("enable_dynamic_port_allocation"); ok || !reflect.DeepEqual(v, enableDynamicPortAllocationProp) {
 		obj["enableDynamicPortAllocation"] = enableDynamicPortAllocationProp
 	}
 	udpIdleTimeoutSecProp, err := expandNestedComputeRouterNatUdpIdleTimeoutSec(d.Get("udp_idle_timeout_sec"), d, config)
diff --git a/google/resource_compute_router_nat_test.go b/google/resource_compute_router_nat_test.go
index f63cb156131..47e283e4326 100644
--- a/google/resource_compute_router_nat_test.go
+++ b/google/resource_compute_router_nat_test.go
@@ -178,6 +178,14 @@ func TestAccComputeRouterNat_withPortAllocationMethods(t *testing.T) {
 		Providers:    testAccProviders,
 		CheckDestroy: testAccCheckComputeRouterNatDestroyProducer(t),
 		Steps: []resource.TestStep{
+			{
+				Config: testAccComputeRouterNatWithAllocationMethod(routerName, false, true),
+			},
+			{
+				ResourceName:      "google_compute_router_nat.foobar",
+				ImportState:       true,
+				ImportStateVerify: true,
+			},
 			{
 				Config: testAccComputeRouterNatWithAllocationMethod(routerName, true, false),
 			},