diff --git a/packages/babel-plugin-transform-runtime/scripts/build-dist.js b/packages/babel-plugin-transform-runtime/scripts/build-dist.js
index 6b52a3f3b465..56aae9e88130 100644
--- a/packages/babel-plugin-transform-runtime/scripts/build-dist.js
+++ b/packages/babel-plugin-transform-runtime/scripts/build-dist.js
@@ -103,7 +103,7 @@ function writeHelperExports(runtimeName) {
   }
   pkgJson.exports = exports;
 
-  outputFile(pkgJsonPath, JSON.stringify(pkgJson, undefined, 2));
+  outputFile(pkgJsonPath, JSON.stringify(pkgJson, undefined, 2) + "\n");
 }
 
 function writeHelperFiles(runtimeName, { esm, corejs }) {
diff --git a/packages/babel-runtime-corejs2/package.json b/packages/babel-runtime-corejs2/package.json
index e53bb0131b11..704726330806 100644
--- a/packages/babel-runtime-corejs2/package.json
+++ b/packages/babel-runtime-corejs2/package.json
@@ -90,4 +90,4 @@
     "./helpers/esm/classPrivateMethodSet": "./helpers/esm/classPrivateMethodSet.js",
     "./helpers/esm/wrapRegExp": "./helpers/esm/wrapRegExp.js"
   }
-}
\ No newline at end of file
+}
diff --git a/packages/babel-runtime-corejs3/package.json b/packages/babel-runtime-corejs3/package.json
index 1becdc70b4e9..f2f76d6f2d90 100644
--- a/packages/babel-runtime-corejs3/package.json
+++ b/packages/babel-runtime-corejs3/package.json
@@ -87,4 +87,4 @@
     "./helpers/esm/classPrivateMethodSet": "./helpers/esm/classPrivateMethodSet.js",
     "./helpers/esm/wrapRegExp": "./helpers/esm/wrapRegExp.js"
   }
-}
\ No newline at end of file
+}
diff --git a/packages/babel-runtime/package.json b/packages/babel-runtime/package.json
index 30fde4cd8587..369d6989107e 100644
--- a/packages/babel-runtime/package.json
+++ b/packages/babel-runtime/package.json
@@ -94,4 +94,4 @@
     "./helpers/esm/classPrivateMethodSet": "./helpers/esm/classPrivateMethodSet.js",
     "./helpers/esm/wrapRegExp": "./helpers/esm/wrapRegExp.js"
   }
-}
\ No newline at end of file
+}