diff --git a/.changelog/6175.txt b/.changelog/6175.txt
new file mode 100644
index 00000000000..45aaa58e21f
--- /dev/null
+++ b/.changelog/6175.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+filestore: fixed a case where `google_filestore_instance.networks.network` would incorrectly see a diff between state and config when the network `id` format was used
+```
diff --git a/google/resource_filestore_instance.go b/google/resource_filestore_instance.go
index 23cbaf5bcb2..b085c66a1fb 100644
--- a/google/resource_filestore_instance.go
+++ b/google/resource_filestore_instance.go
@@ -152,9 +152,10 @@ IP addresses assigned. Possible values: ["ADDRESS_MODE_UNSPECIFIED", "MODE_IPV4"
 							},
 						},
 						"network": {
-							Type:     schema.TypeString,
-							Required: true,
-							ForceNew: true,
+							Type:             schema.TypeString,
+							Required:         true,
+							ForceNew:         true,
+							DiffSuppressFunc: compareSelfLinkOrResourceName,
 							Description: `The name of the GCE VPC network to which the
 instance is connected.`,
 						},