diff --git a/tools/wineinstall b/tools/wineinstall
index 60a0e862c19..c122b4e52b0 100755
--- a/tools/wineinstall
+++ b/tools/wineinstall
@@ -163,7 +163,7 @@ then {
   }
   fi
 
-  if [ `whoami` == 'root' ]
+  if [ `whoami` = 'root' ]
   then {
     echo "You are running wineinstall as root, this is not advisable. Please rerun as a user."
     echo "Aborting."