diff --git a/third_party/dosfstools/dosfstools.bzl b/third_party/dosfstools/dosfstools.bzl
index b1984ee..cfe4b28 100644
--- a/third_party/dosfstools/dosfstools.bzl
+++ b/third_party/dosfstools/dosfstools.bzl
@@ -35,7 +35,7 @@
     name = "version.h",
     src = "src/version.h.in",
     substitutions = {
-        # ONCHANGE(//third_party/dosfstools:external.bzl): version needs to be kept in sync
+        # ONCHANGE(//build/bazel:third_party.MODULE.bazel): version needs to be kept in sync
         "@PACKAGE_VERSION@": "unstable-2022-07-25",
         "@RELEASE_DATE@": "2022-07-25",
     },
diff --git a/third_party/dosfstools/external.bzl b/third_party/dosfstools/external.bzl
deleted file mode 100644
index 459f725..0000000
--- a/third_party/dosfstools/external.bzl
+++ /dev/null
@@ -1,14 +0,0 @@
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-def dosfstools_external(name, version):
-    sums = {
-        "c888797b1d84ffbb949f147e3116e8bfb2e145a7": "4a40b488c0c259c11fb54783fc6f01e5ee912582bb49d33d0d11b11f85a42e8d",
-    }
-
-    http_archive(
-        name = name,
-        sha256 = sums[version],
-        strip_prefix = "dosfstools-" + version,
-        build_file = "@//third_party/dosfstools:dosfstools.bzl",
-        urls = ["https://github.com/dosfstools/dosfstools/archive/%s.zip" % (version)],
-    )