diff --git a/packages/mui-base/src/ClickAwayListener/index.ts b/packages/mui-base/src/ClickAwayListener/index.ts
index 3e3ab51c8eea96..5172bb456ab6f2 100644
--- a/packages/mui-base/src/ClickAwayListener/index.ts
+++ b/packages/mui-base/src/ClickAwayListener/index.ts
@@ -1,2 +1 @@
-'use client';
 export * from './ClickAwayListener';
diff --git a/packages/mui-base/src/Dropdown/index.ts b/packages/mui-base/src/Dropdown/index.ts
index 3553d94e3e1334..7b97b2e607fee9 100644
--- a/packages/mui-base/src/Dropdown/index.ts
+++ b/packages/mui-base/src/Dropdown/index.ts
@@ -1,3 +1,2 @@
-'use client';
 export * from './Dropdown';
 export * from './Dropdown.types';
diff --git a/packages/mui-base/src/FocusTrap/index.ts b/packages/mui-base/src/FocusTrap/index.ts
index b18e9a41f2e0e7..3c35ab138a7998 100644
--- a/packages/mui-base/src/FocusTrap/index.ts
+++ b/packages/mui-base/src/FocusTrap/index.ts
@@ -1,3 +1,2 @@
-'use client';
 export { FocusTrap } from './FocusTrap';
 export * from './FocusTrap.types';
diff --git a/packages/mui-base/src/FormControl/index.ts b/packages/mui-base/src/FormControl/index.ts
index 36bffd4e36536c..8119bbdd4284bd 100644
--- a/packages/mui-base/src/FormControl/index.ts
+++ b/packages/mui-base/src/FormControl/index.ts
@@ -1,4 +1,3 @@
-'use client';
 export { FormControl } from './FormControl';
 
 export { FormControlContext } from './FormControlContext';
diff --git a/packages/mui-base/src/Modal/index.ts b/packages/mui-base/src/Modal/index.ts
index 37908e8173f35b..2232c6b997faae 100644
--- a/packages/mui-base/src/Modal/index.ts
+++ b/packages/mui-base/src/Modal/index.ts
@@ -1,4 +1,3 @@
-'use client';
 export { Modal } from './Modal';
 export * from './Modal.types';
 export * from './modalClasses';
diff --git a/packages/mui-material/src/GlobalStyles/index.js b/packages/mui-material/src/GlobalStyles/index.js
index 275d047f4e9eb3..48e20189092434 100644
--- a/packages/mui-material/src/GlobalStyles/index.js
+++ b/packages/mui-material/src/GlobalStyles/index.js
@@ -1,2 +1 @@
-'use client';
 export { default } from './GlobalStyles';
diff --git a/packages/rsc-builder/buildRsc.ts b/packages/rsc-builder/buildRsc.ts
index 3a4616d63a967f..59705255ed8dcd 100644
--- a/packages/rsc-builder/buildRsc.ts
+++ b/packages/rsc-builder/buildRsc.ts
@@ -73,21 +73,6 @@ async function processFile(
   await fse.writeFile(filename, newContents);
 }
 
-function getIndexFile(directory: string) {
-  const items = fse.readdirSync(directory);
-
-  const indexFile = items.reduce((prev, curr) => {
-    if (!/^index.(js|ts)/.test(curr)) {
-      return prev;
-    }
-    return curr;
-  }, '');
-
-  return {
-    filename: path.join(directory, indexFile),
-  };
-}
-
 async function findAll(
   directories: string[],
   grep: RegExp | null,
@@ -124,24 +109,11 @@ async function run(argv: yargs.ArgumentsCamelCase<CommandOptions>) {
       ];
     }
 
-    const indexFile = getIndexFile(projectSrc);
-
-    try {
-      processFile(indexFile.filename);
-    } catch (error: any) {
-      error.message = `${path.relative(process.cwd(), indexFile.filename)}: ${error.message}`;
-      throw error;
-    }
-
     const components = await findAll(directories, grep, findComponents);
 
     components.forEach(async (component) => {
       try {
         processFile(component.filename);
-
-        if (component.indexFilename) {
-          processFile(component.indexFilename);
-        }
       } catch (error: any) {
         error.message = `${path.relative(process.cwd(), component.filename)}: ${error.message}`;
         throw error;
@@ -153,10 +125,6 @@ async function run(argv: yargs.ArgumentsCamelCase<CommandOptions>) {
     hooks.forEach(async (hook) => {
       try {
         processFile(hook.filename);
-
-        if (hook.indexFilename) {
-          processFile(hook.indexFilename);
-        }
       } catch (error: any) {
         error.message = `${path.relative(process.cwd(), hook.filename)}: ${error.message}`;
         throw error;