diff --git a/CHANGELOG.md b/CHANGELOG.md
index 62c3c8bcbc..30f2d7ad04 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ Please add one entry in this file for each change in Yarn's behavior. Use the sa
 
 ## Master
 
+- Removes `rootModuleFolders` (internal variable which wasn't used anywhere)
+
+  [#6846](https://github.com/yarnpkg/yarn/pull/6846) - [**Jeff Valore**](https://twitter.com/codingwithspike)
+
 - Allows `global-folder` to be set in `.yarnrc` files
 
   [#7056](https://github.com/yarnpkg/yarn/pull/7056) - [**Hsiao-nan Cheung**](https://github.com/niheaven)
diff --git a/src/cli/commands/config.js b/src/cli/commands/config.js
index 1e35326d73..d884c2c39e 100644
--- a/src/cli/commands/config.js
+++ b/src/cli/commands/config.js
@@ -7,7 +7,6 @@ import buildSubCommands from './_build-sub-commands.js';
 
 const CONFIG_KEYS = [
   // 'reporter',
-  'rootModuleFolders',
   'registryFolders',
   'linkedModules',
   // 'registries',
diff --git a/src/config.js b/src/config.js
index 031f7e4356..264e850d57 100644
--- a/src/config.js
+++ b/src/config.js
@@ -127,9 +127,6 @@ export default class Config {
   //
   linkedModules: Array<string>;
 
-  //
-  rootModuleFolders: Array<string>;
-
   //
   linkFolder: string;
 
@@ -317,10 +314,6 @@ export default class Config {
       if (this.registryFolders.indexOf(registry.folder) === -1) {
         this.registryFolders.push(registry.folder);
       }
-      const rootModuleFolder = path.join(this.cwd, registry.folder);
-      if (this.rootModuleFolders.indexOf(rootModuleFolder) === -1) {
-        this.rootModuleFolders.push(rootModuleFolder);
-      }
     }
 
     if (this.modulesFolder) {
@@ -458,7 +451,6 @@ export default class Config {
   }
 
   _init(opts: ConfigOptions) {
-    this.rootModuleFolders = [];
     this.registryFolders = [];
     this.linkedModules = [];
 
@@ -499,10 +491,6 @@ export default class Config {
       captureHar: !!opts.captureHar,
     });
 
-    if (this.modulesFolder) {
-      this.rootModuleFolders.push(this.modulesFolder);
-    }
-
     this.focus = !!opts.focus;
     this.focusedWorkspaceName = '';