diff --git a/.eslintignore b/.eslintignore
index 023979a515..011ec96362 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -2,7 +2,6 @@ lib/internal/v8_prof_polyfill.js
 lib/punycode.js
 test/addons/??_*
 test/fixtures
-test/tmp*
 tools/eslint
 tools/icu
 node_modules
diff --git a/test/common/index.js b/test/common/index.js
index 8ccbc0e0df..76b86b6772 100644
--- a/test/common/index.js
+++ b/test/common/index.js
@@ -38,7 +38,9 @@ const noop = () => {};
 
 exports.fixturesDir = fixturesDir;
 
-exports.tmpDirName = 'tmp';
+// Using a `.` prefixed name, which is the convention for "hidden" on POSIX,
+// gets tools to ignore it by default or by simple rules, especially eslint.
+exports.tmpDirName = '.tmp';
 // PORT should match the definition in test/testpy/__init__.py.
 exports.PORT = +process.env.NODE_COMMON_PORT || 12346;
 exports.isWindows = process.platform === 'win32';