diff --git a/packages/babel-core/src/transformation/file/index.js b/packages/babel-core/src/transformation/file/index.js
index 96353a8a8c..9675868d3a 100644
--- a/packages/babel-core/src/transformation/file/index.js
+++ b/packages/babel-core/src/transformation/file/index.js
@@ -141,8 +141,6 @@ export default class File extends Store {
       opts.moduleIds = true;
     }
 
-    opts.basename = path.basename(opts.filename, path.extname(opts.filename));
-
     defaults(opts, {
       moduleRoot: opts.sourceRoot,
     });
diff --git a/packages/babel-plugin-transform-es2015-modules-umd/src/index.js b/packages/babel-plugin-transform-es2015-modules-umd/src/index.js
index 72fd6fe7a5..072275ed7d 100644
--- a/packages/babel-plugin-transform-es2015-modules-umd/src/index.js
+++ b/packages/babel-plugin-transform-es2015-modules-umd/src/index.js
@@ -98,7 +98,8 @@ export default function ({ types: t }) {
             }
           });
 
-          const moduleNameOrBasename = moduleName ? moduleName.value : this.file.opts.basename;
+          const moduleNameOrBasename = moduleName ? moduleName.value :
+            basename(this.file.opts.filename, extname(this.file.opts.filename));
           let globalToAssign = t.memberExpression(
             t.identifier("global"), t.identifier(t.toIdentifier(moduleNameOrBasename))
           );
diff --git a/packages/babel-plugin-transform-react-display-name/src/index.js b/packages/babel-plugin-transform-react-display-name/src/index.js
index f80f67c8dd..d94d657c11 100644
--- a/packages/babel-plugin-transform-react-display-name/src/index.js
+++ b/packages/babel-plugin-transform-react-display-name/src/index.js
@@ -42,7 +42,7 @@ export default function ({ types: t }) {
     visitor: {
       ExportDefaultDeclaration({ node }, state) {
         if (isCreateClass(node.declaration)) {
-          let displayName = state.file.opts.basename;
+          let displayName = path.basename(state.file.opts.filename, path.extname(state.file.opts.filename));
 
           // ./{module name}/index.js
           if (displayName === "index") {