diff --git a/src/database/sql/sql_test.go b/src/database/sql/sql_test.go
index 228a3f2..34bbc66 100644
--- a/src/database/sql/sql_test.go
+++ b/src/database/sql/sql_test.go
@@ -267,6 +267,7 @@
 	prepares0 := numPrepares(t, db)
 
 	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
 
 	rows, err := db.QueryContext(ctx, "SELECT|people|age,name|")
 	if err != nil {