diff --git a/src/installer.ts b/src/installer.ts
index dc4a253..1d1013e 100644
--- a/src/installer.ts
+++ b/src/installer.ts
@@ -116,10 +116,7 @@ export class DotnetCoreInstaller {
       }
 
       // process.env must be explicitly passed in for DOTNET_INSTALL_DIR to be used
-      let powershellPath = await io.which('pwsh', false);
-      if (powershellPath == '') {
-        powershellPath = await io.which('powershell', true);
-      }
+      const powershellPath = await io.which('pwsh', false) || await io.which('powershell', true);
 
       var options: ExecOptions = {
         listeners: {