diff --git a/liteeth/frontend/stream.py b/liteeth/frontend/stream.py
index 2776f48..6bfdc21 100644
--- a/liteeth/frontend/stream.py
+++ b/liteeth/frontend/stream.py
@@ -15,6 +15,8 @@ class LiteEthStream2UDPTX(Module):
 
         # # #
 
+        ip_address = convert_ip(ip_address)
+
         if fifo_depth is None:
             assert send_level == 1
             self.comb += [
@@ -65,6 +67,8 @@ class LiteEthUDP2StreamRX(Module):
 
         # # #
 
+        ip_address = convert_ip(ip_address)
+
         valid = Signal()
         self.comb += valid.eq(
             (sink.ip_address == ip_address) &