diff --git a/packages/nodejs/.changesets/do-not-ship-test-files.md b/packages/nodejs/.changesets/do-not-ship-test-files.md
new file mode 100644
index 00000000..eaf1763a
--- /dev/null
+++ b/packages/nodejs/.changesets/do-not-ship-test-files.md
@@ -0,0 +1,6 @@
+---
+bump: "patch"
+type: "remove"
+---
+
+Do not ship the extension install script test files in the published package. Reduces the package size a tiny bit.
diff --git a/packages/nodejs/.npmignore b/packages/nodejs/.npmignore
index b4549ed4..15186f27 100644
--- a/packages/nodejs/.npmignore
+++ b/packages/nodejs/.npmignore
@@ -1,6 +1,7 @@
 *
 !/dist/**/*
 !/scripts/**/*
+scripts/**/*.test.js
 !/ext/appsignal_extension.cpp
 !/cert/**/*
 !binding.gyp