diff --git a/src/win/Makefile.mingw b/src/win/Makefile.mingw
index 0aa08d267..4b60cb930 100644
--- a/src/win/Makefile.mingw
+++ b/src/win/Makefile.mingw
@@ -669,7 +669,8 @@ NETOBJ := network.o \
           net_dp8390.o net_3c501.o \
           net_3c503.o net_ne2000.o \
           net_pcnet.o net_wd8003.o \
-          net_plip.o net_event.o
+          net_plip.o net_event.o \
+          net_null.o
 
 PRINTOBJ := png.o prt_cpmap.o \
             prt_escp.o prt_text.o prt_ps.o