diff --git a/.pnpmfile.cjs b/.pnpmfile.cjs
index 3e16c0d3540..6bafa1bc4f3 100644
--- a/.pnpmfile.cjs
+++ b/.pnpmfile.cjs
@@ -44,7 +44,8 @@ function updatePackageFile( packagePath, packageFile ) {
 
 	fs.writeFileSync(
 		path.join( packagePath, 'package.json' ),
-		JSON.stringify( packageFile, null, '\t' ),
+		// Make sure to keep the newline at the end of the file.
+		JSON.stringify( packageFile, null, '\t' ) + "\n",
 		'utf8'
 	);
 }