diff --git a/packages/cli/src/commands/server/runServer.js b/packages/cli/src/commands/server/runServer.js
index 24e9821a1..d5d028f47 100644
--- a/packages/cli/src/commands/server/runServer.js
+++ b/packages/cli/src/commands/server/runServer.js
@@ -35,6 +35,7 @@ export type Args = {|
   verbose?: boolean,
   watchFolders?: string[],
   config?: string,
+  projectRoot?: string,
 |};
 
 async function runServer(argv: Array<string>, ctx: ConfigT, args: Args) {
@@ -48,6 +49,7 @@ async function runServer(argv: Array<string>, ctx: ConfigT, args: Args) {
     port: args.port,
     resetCache: args.resetCache,
     watchFolders: args.watchFolders,
+    projectRoot: args.projectRoot,
     sourceExts: args.sourceExts,
     reporter,
   });
diff --git a/packages/cli/src/tools/loadMetroConfig.js b/packages/cli/src/tools/loadMetroConfig.js
index a59f28751..c9e5fb7f4 100644
--- a/packages/cli/src/tools/loadMetroConfig.js
+++ b/packages/cli/src/tools/loadMetroConfig.js
@@ -71,6 +71,7 @@ export const getDefaultConfig = (ctx: ConfigT) => {
 export type ConfigOptionsT = {|
   maxWorkers?: number,
   port?: number,
+  projectRoot?: string,
   resetCache?: boolean,
   watchFolders?: string[],
   sourceExts?: string[],