diff --git a/R/class_sequential.R b/R/class_sequential.R
index c64f0b05..9cca5d61 100644
--- a/R/class_sequential.R
+++ b/R/class_sequential.R
@@ -14,8 +14,8 @@ sequential_class <- R6::R6Class(
   cloneable = FALSE,
   public = list(
     dequeue = function() {
-      head <- self$data[1L]
-      self$data <- self$data[-1L]
+      head <- data[1L]
+      self$data <- data[-1L]
       head
     },
     prepend = function(names, ranks = NULL) {
diff --git a/tests/testthat/test-class_file.R b/tests/testthat/test-class_file.R
index 14426b90..c127611d 100644
--- a/tests/testthat/test-class_file.R
+++ b/tests/testthat/test-class_file.R
@@ -209,7 +209,7 @@ tar_test("file_update_hash() where neither file exists", {
   expect_false(anyNA(file_time_posixct(file$time)))
   expect_true(inherits(file_time_posixct(file$time), "POSIXct"))
   expect_true(is.character(file$size))
-    expect_true(grepl("^s", file$size))
+  expect_true(grepl("^s", file$size))
   expect_true(grepl("b$", file$size))
 })