diff --git a/src/main-process/atom-application.js b/src/main-process/atom-application.js
index 7be947115..6fe8a0c34 100644
--- a/src/main-process/atom-application.js
+++ b/src/main-process/atom-application.js
@@ -230,6 +230,7 @@ class AtomApplication extends EventEmitter {
       pidToKillWhenClosed,
       devMode,
       safeMode,
+      newWindow,
       logFile,
       profileStartup,
       timeout,
@@ -267,6 +268,7 @@ class AtomApplication extends EventEmitter {
         foldersToOpen,
         executedFrom,
         pidToKillWhenClosed,
+        newWindow,
         devMode,
         safeMode,
         profileStartup,
@@ -280,6 +282,7 @@ class AtomApplication extends EventEmitter {
       // Always open a editor window if this is the first instance of Atom.
       return this.openPath({
         pidToKillWhenClosed,
+        newWindow,
         devMode,
         safeMode,
         profileStartup,
@@ -791,6 +794,7 @@ class AtomApplication extends EventEmitter {
   // options -
   //   :pathToOpen - The file path to open
   //   :pidToKillWhenClosed - The integer of the pid to kill
+  //   :newWindow - Boolean of whether this should be opened in a new window.
   //   :devMode - Boolean to control the opened window's dev mode.
   //   :safeMode - Boolean to control the opened window's safe mode.
   //   :profileStartup - Boolean to control creating a profile of the startup time.
@@ -810,6 +814,7 @@ class AtomApplication extends EventEmitter {
     return this.openPaths({
       pathsToOpen: [pathToOpen],
       pidToKillWhenClosed,
+      newWindow,
       devMode,
       safeMode,
       profileStartup,
@@ -826,6 +831,7 @@ class AtomApplication extends EventEmitter {
   //   :pathsToOpen - The array of file paths to open
   //   :foldersToOpen - An array of additional paths to open that must be existing directories
   //   :pidToKillWhenClosed - The integer of the pid to kill
+  //   :newWindow - Boolean of whether this should be opened in a new window.
   //   :devMode - Boolean to control the opened window's dev mode.
   //   :safeMode - Boolean to control the opened window's safe mode.
   //   :windowDimensions - Object with height and width keys.
@@ -836,6 +842,7 @@ class AtomApplication extends EventEmitter {
     foldersToOpen,
     executedFrom,
     pidToKillWhenClosed,
+    newWindow,
     devMode,
     safeMode,
     windowDimensions,