diff --git a/.changelog/9757.txt b/.changelog/9757.txt
new file mode 100644
index 00000000000..5b6f907d55e
--- /dev/null
+++ b/.changelog/9757.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+bigquery: Fix permadiff of encryption_configuration in resource_bigquery_table when API returns an empty object
+```
diff --git a/google/services/bigquery/resource_bigquery_table.go b/google/services/bigquery/resource_bigquery_table.go
index 970be34fb19..478873165da 100644
--- a/google/services/bigquery/resource_bigquery_table.go
+++ b/google/services/bigquery/resource_bigquery_table.go
@@ -2129,6 +2129,10 @@ func flattenEncryptionConfiguration(ec *bigquery.EncryptionConfiguration) []map[
 	re := regexp.MustCompile(`(projects/.*/locations/.*/keyRings/.*/cryptoKeys/.*)/cryptoKeyVersions/.*`)
 	paths := re.FindStringSubmatch(ec.KmsKeyName)
 
+	if len(ec.KmsKeyName) == 0 {
+		return nil
+	}
+
 	if len(paths) > 0 {
 		return []map[string]interface{}{
 			{