diff --git a/sqlutil_test.go b/sqlutil_test.go
index 7dea07a..b904392 100644
--- a/sqlutil_test.go
+++ b/sqlutil_test.go
@@ -204,11 +204,28 @@ func TestTransact(t *testing.T) {
 				require.False(t, isTaskCompleted(t, ctx, tc.db, 2))
 			})
 
+			t.Run("failure: rollback on cancel", func(t *testing.T) {
+				ctx := t.Context()
+
+				txCtx, txCancel := context.WithCancel(ctx)
+
+				err := sqlutil.Transact(txCtx, tc.db, func(ctx context.Context, tx *sql.Tx) error {
+					completeTask(t, ctx, tx, 1)
+					txCancel()
+
+					return nil
+				})
+				require.ErrorIs(t, err, context.Canceled)
+
+				require.False(t, isTaskCompleted(t, ctx, tc.db, 1))
+				require.False(t, isTaskCompleted(t, ctx, tc.db, 2))
+			})
+
 			t.Run("success", func(t *testing.T) {
 				ctx := t.Context()
 
-				err := sqlutil.Transact(ctx, tc.db, func(txCtx context.Context, tx *sql.Tx) error {
-					completeTask(t, txCtx, tx, 1)
+				err := sqlutil.Transact(ctx, tc.db, func(ctx context.Context, tx *sql.Tx) error {
+					completeTask(t, ctx, tx, 1)
 
 					return nil
 				})