diff --git a/tinc/subnet-up b/tinc/subnet-up
index 55faea1..bdc8e19 100644
--- a/tinc/subnet-up
+++ b/tinc/subnet-up
@@ -15,6 +15,6 @@ else
   fi
 fi
 
-SCRIPT`readlink -f "$0"`
+SCRIPT=`readlink -f "$0"`
 SCRIPTPATH=`dirname "$SCRIPT"`
 $SCRIPTPATH/check-node