diff --git a/src/pkg/exporter/project_collector.go b/src/pkg/exporter/project_collector.go
index 21fdfef930..eaf85e2881 100644
--- a/src/pkg/exporter/project_collector.go
+++ b/src/pkg/exporter/project_collector.go
@@ -41,7 +41,7 @@ var (
 		valueType: prometheus.GaugeValue,
 	}
 	projectUsage = typedDesc{
-		desc:      newDescWithLables("", "project_usage_byte", "The used resource of a project", "project_name"),
+		desc:      newDescWithLables("", "project_quota_usage_byte", "The used resource of a project", "project_name"),
 		valueType: prometheus.GaugeValue,
 	}
 	projectQuote = typedDesc{
diff --git a/tests/apitests/python/test_verify_metrics_enabled.py b/tests/apitests/python/test_verify_metrics_enabled.py
index b5f1589285..b976cbf37b 100644
--- a/tests/apitests/python/test_verify_metrics_enabled.py
+++ b/tests/apitests/python/test_verify_metrics_enabled.py
@@ -9,14 +9,13 @@ import testutils
 class TestMetricsExist(unittest.TestCase):
     golang_basic_metrics = ["go_gc_duration_seconds", "go_goroutines", "go_info", "go_memstats_alloc_bytes"]
 
-    eigen_metrics = {
+    metrics = {
         'core': golang_basic_metrics + ["harbor_core_http_request_total", "harbor_core_http_request_duration_seconds",
     "harbor_core_http_inflight_requests"],
         'registry': golang_basic_metrics + ["registry_http_in_flight_requests"],
         'exporter': golang_basic_metrics + ["artifact_pulled",
     "harbor_project_artifact_total", "harbor_project_member_total", "harbor_project_quota_byte",
-    "harbor_project_repo_total", "harbor_project_total"
-    ]
+    "harbor_project_repo_total", "harbor_project_total", "project_quota_usage_byte"]
     }
 
     def get_metrics(self):
@@ -28,7 +27,7 @@ class TestMetricsExist(unittest.TestCase):
 
     def testMetricsExist(self):
         for k, metric_text in self.get_metrics():
-            for metric_name in self.eigen_metrics[k]:
+            for metric_name in self.metrics[k]:
                 print("Metric {} should exist in {} ".format(metric_name, k))
                 self.assertTrue(metric_name in metric_text)