diff --git a/docs/release-notes.md b/docs/release-notes.md
index 08cc832c..72b321c8 100644
--- a/docs/release-notes.md
+++ b/docs/release-notes.md
@@ -1,6 +1,9 @@
 ← [README](README.md)
 
 # Release notes
+## Upcoming release
+* Fixed installer failing on Windows when run from the game folder.
+
 ## 3.13.0
 Released 30 November 2021 for Stardew Valley 1.5.5 or later.
 
diff --git a/src/SMAPI.Installer/assets/windows-install.bat b/src/SMAPI.Installer/assets/windows-install.bat
index 2e0be906..f21679ae 100644
--- a/src/SMAPI.Installer/assets/windows-install.bat
+++ b/src/SMAPI.Installer/assets/windows-install.bat
@@ -1,6 +1,6 @@
 @echo off
 
-SET installerDir=%~dp0
+SET installerDir="%~dp0"
 
 REM make sure we're not running within a zip folder
 echo %installerDir% | findstr /C:"%TEMP%" 1>nul
@@ -28,7 +28,7 @@ if %ERRORLEVEL% NEQ 0 (
 )
 
 REM make sure an antivirus hasn't deleted the installer DLL
-if not exist "%installerDir%internal\windows\SMAPI.Installer.dll" (
+if not exist %installerDir%"internal\windows\SMAPI.Installer.dll" (
     echo Oops! SMAPI is missing one of its files. Your antivirus might have deleted it.
     echo Missing file: %installerDir%internal\windows\SMAPI.Installer.dll
     echo.