diff --git a/main_test.go b/main_test.go
index 50f4a72..276625a 100644
--- a/main_test.go
+++ b/main_test.go
@@ -98,6 +98,7 @@ var (
 		"sora_client": {
 		  "total_failed_sora_client_type": {
 			"sora_android_sdk": 1,
+			"sora_c_sdk": 12,
 			"sora_cpp_sdk": 7,
 			"sora_flutter_sdk": 9,
 			"sora_ios_sdk": 2,
@@ -111,6 +112,7 @@ var (
 		  },
 		  "total_successful_sora_client_type": {
 			"sora_android_sdk": 11,
+			"sora_c_sdk": 1212,
 			"sora_cpp_sdk": 77,
 			"sora_flutter_sdk": 99,
 			"sora_ios_sdk": 22,
diff --git a/test/maximum.metrics b/test/maximum.metrics
index 7f2aafd..755e312 100644
--- a/test/maximum.metrics
+++ b/test/maximum.metrics
@@ -25,6 +25,8 @@ sora_cluster_raft_term 3
 # TYPE sora_client_type_total counter
 sora_client_type_total{client="android_sdk",state="failed"} 1
 sora_client_type_total{client="android_sdk",state="successful"} 11
+sora_client_type_total{client="c_sdk",state="failed"} 12
+sora_client_type_total{client="c_sdk",state="successful"} 1212
 sora_client_type_total{client="cpp_sdk",state="failed"} 7
 sora_client_type_total{client="cpp_sdk",state="successful"} 77
 sora_client_type_total{client="flutter_sdk",state="failed"} 9
diff --git a/test/sora_client_enabled.metrics b/test/sora_client_enabled.metrics
index 5097d55..34fb87e 100644
--- a/test/sora_client_enabled.metrics
+++ b/test/sora_client_enabled.metrics
@@ -12,6 +12,8 @@ sora_average_setup_time_seconds 0
 # TYPE sora_client_type_total counter
 sora_client_type_total{client="android_sdk",state="failed"} 1
 sora_client_type_total{client="android_sdk",state="successful"} 11
+sora_client_type_total{client="c_sdk",state="failed"} 12
+sora_client_type_total{client="c_sdk",state="successful"} 1212
 sora_client_type_total{client="cpp_sdk",state="failed"} 7
 sora_client_type_total{client="cpp_sdk",state="successful"} 77
 sora_client_type_total{client="flutter_sdk",state="failed"} 9