diff --git a/tsdb/agent/db_test.go b/tsdb/agent/db_test.go
index e1a6106a3..8f6cdc68a 100644
--- a/tsdb/agent/db_test.go
+++ b/tsdb/agent/db_test.go
@@ -11,6 +11,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build !windows
+// +build !windows
+
 package agent
 
 import (