diff --git a/Dockerfile b/Dockerfile
index a1a381a..14976cb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,7 +17,7 @@ COPY container_files/attribute-map.xml c:/opt/shibboleth-sp/etc/shibboleth/
 
 #add ASP.NET and IIS svc monitor
 SHELL ["powershell", "-Command", "$ErrorActionPreference = 'Stop'; $ProgressPreference = 'SilentlyContinue';"]	
-RUN Add-WindowsFeature Web-Server; ` \
+RUN Add-WindowsFeature Web-WebServer; ` \
     Add-WindowsFeature Web-Net-Ext; ` \
     Add-WindowsFeature Web-Net-Ext45; ` \
     Add-WindowsFeature Web-Asp-Net45; ` \