diff --git a/packages/launch-editor/index.js b/packages/launch-editor/index.js
index 76bb787..55e7316 100644
--- a/packages/launch-editor/index.js
+++ b/packages/launch-editor/index.js
@@ -106,8 +106,8 @@ function launchEditor (file, specifiedEditor, onErrorCallback) {
   // and
   // https://github.com/facebook/create-react-app/pull/5431)
 
-  // Allows alphanumeric characters, periods, dashes, slashes, and underscores.
-  const WINDOWS_CMD_SAFE_FILE_NAME_PATTERN = /^([A-Za-z]:[/\\])?[\p{L}0-9/.\-_\\]+$/u
+  // Allows alphanumeric characters, periods, dashes, slashes, underscores, plus and space.
+  const WINDOWS_CMD_SAFE_FILE_NAME_PATTERN = /^([A-Za-z]:[/\\])?[\p{L}0-9/.\-\\_+ ]+$/u
   if (
     process.platform === 'win32' &&
     !WINDOWS_CMD_SAFE_FILE_NAME_PATTERN.test(fileName.trim())