diff --git a/weaver/weave b/weaver/weave
index 7979e0de..202b650b 100755
--- a/weaver/weave
+++ b/weaver/weave
@@ -49,8 +49,8 @@ add_nat_rule() {
 }
 
 setup_masquerading() {
-    add_nat_rule "POSTROUTING -d $IPADDR ! -s $IPADDR -j MASQUERADE"
-    add_nat_rule "POSTROUTING -s $IPADDR ! -d $IPADDR -j MASQUERADE"
+    add_nat_rule "POSTROUTING -o $BRIDGE ! -s $IPADDR -j MASQUERADE"
+    add_nat_rule "POSTROUTING -s $IPADDR ! -o $BRIDGE -j MASQUERADE"
 }
 
 case "$COMMAND" in