diff --git a/dist/index.js b/dist/index.js
index ef39795..210cdf3 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -357,7 +357,7 @@ class DotnetCoreInstaller {
     }
 }
 exports.DotnetCoreInstaller = DotnetCoreInstaller;
-DotnetCoreInstaller.installationDirectoryWindows = path.join(process.env['PROGRAMFILES'] + '', "dotnet");
+DotnetCoreInstaller.installationDirectoryWindows = `'${path.join(process.env['PROGRAMFILES'] + '', "dotnet")}'`;
 DotnetCoreInstaller.installationDirectoryLinux = '/usr/share/dotnet';
 function logWarning(message) {
     const warningPrefix = '[warning]';
diff --git a/src/installer.ts b/src/installer.ts
index 42080a5..86fee04 100644
--- a/src/installer.ts
+++ b/src/installer.ts
@@ -83,7 +83,7 @@ export class DotnetVersionResolver {
 export class DotnetCoreInstaller {
   private version: string;
   private quality: string;
-  static installationDirectoryWindows = path.join(process.env['PROGRAMFILES'] + '', "dotnet");
+  static installationDirectoryWindows = `'${path.join(process.env['PROGRAMFILES'] + '', "dotnet")}'`;
   static installationDirectoryLinux = '/usr/share/dotnet';
 
   constructor(version: string, quality: string) {