diff --git a/modules/post/multi/manage/shell_to_meterpreter.rb b/modules/post/multi/manage/shell_to_meterpreter.rb
index b47e779fba..2c0fb99649 100644
--- a/modules/post/multi/manage/shell_to_meterpreter.rb
+++ b/modules/post/multi/manage/shell_to_meterpreter.rb
@@ -93,7 +93,7 @@ class Metasploit3 < Msf::Post
       vprint_status("Platform: Solaris")
     else
       # Find the best fit, be specific with uname to avoid matching hostname or something else
-      target_info = cmd_exec('uname -mo')
+      target_info = cmd_exec('uname -ms')
       if target_info =~ /linux/i && target_info =~ /86/
         # Handle linux shells that were identified as 'unix'
         platform = 'linux'