diff --git a/update_all.ps1 b/update_all.ps1
index 9264614..cc216d7 100644
--- a/update_all.ps1
+++ b/update_all.ps1
@@ -43,7 +43,7 @@ $Options = [ordered]@{
                 UserName    = $Env:mail_user
                 Password    = $Env:mail_pass
                 Port        = $Env:mail_port
-                EnableSsl   = $Env:enable_ssl
+                EnableSsl   = $Env:enable_ssl -eq 'true'
                 Attachments = "$PSScriptRoot\update_info.xml"
                 UserMessage = ''
                 SendAlways  = $false                        #Send notifications every time