diff --git a/src/libstore/meson.build b/src/libstore/meson.build
index 297bf71870c..8fe58a44097 100644
--- a/src/libstore/meson.build
+++ b/src/libstore/meson.build
@@ -150,6 +150,7 @@ add_project_arguments(
 subdir('build-utils-meson/diagnostics')
 
 sources = files(
+  'auth-tunnel.cc',
   'binary-cache-store.cc',
   'build-result.cc',
   'build/derivation-goal.cc',
@@ -222,6 +223,7 @@ include_dirs = [
 ]
 
 headers = [config_h] + files(
+  'auth-tunnel.hh',
   'binary-cache-store.hh',
   'build-result.hh',
   'build/derivation-goal.hh',
diff --git a/src/libutil/meson.build b/src/libutil/meson.build
index fbfcbe67c42..019e734a845 100644
--- a/src/libutil/meson.build
+++ b/src/libutil/meson.build
@@ -119,6 +119,7 @@ subdir('build-utils-meson/diagnostics')
 sources = files(
   'archive.cc',
   'args.cc',
+  'auth.cc',
   'canon-path.cc',
   'compression.cc',
   'compute-levels.cc',
@@ -168,6 +169,7 @@ headers = [config_h] + files(
   'archive.hh',
   'args.hh',
   'args/root.hh',
+  'auth.hh',
   'callback.hh',
   'canon-path.hh',
   'chunked-vector.hh',
diff --git a/src/nix/meson.build b/src/nix/meson.build
index dd21c4b1bca..26234d29366 100644
--- a/src/nix/meson.build
+++ b/src/nix/meson.build
@@ -48,6 +48,7 @@ subdir('build-utils-meson/generate-header')
 nix_sources = files(
   'add-to-store.cc',
   'app.cc',
+  'auth.cc',
   'build.cc',
   'bundle.cc',
   'cat.cc',