diff --git a/setup/so-functions b/setup/so-functions
index a93812b68..021f43ed2 100755
--- a/setup/so-functions
+++ b/setup/so-functions
@@ -947,7 +947,7 @@ network_setup() {
         fi
 
         echo "... Copying 99-so-checksum-offload-disable";
-        cp "$SCRIPTDIR/install_scripts/99-so-checksum-offload-disable" /etc/NetworkManager/dispatcher.d/pre-up.d/99-so-checksum-offload-disable ;
+        cp "$SCRIPTDIR"/install_scripts/99-so-checksum-offload-disable /etc/NetworkManager/dispatcher.d/pre-up.d/99-so-checksum-offload-disable ;
 
         echo "... Modifying 99-so-checksum-offload-disable";
         sed -i "s/\$MAININT/${MAININT}/g" /etc/NetworkManager/dispatcher.d/pre-up.d/99-so-checksum-offload-disable;