diff --git a/src/osd/sdl/sdl.mak b/src/osd/sdl/sdl.mak
index fd7055f71ad..a328dc53037 100644
--- a/src/osd/sdl/sdl.mak
+++ b/src/osd/sdl/sdl.mak
@@ -756,7 +756,7 @@ endif # USE_XINPUT
 # Network (TAP/TUN)
 #-------------------------------------------------
 
-ifdef USE_NETWORK
+ifndef DONT_USE_NETWORK
 ifeq ($(SDL_NETWORK),taptun)
 OSDOBJS += \
 	$(SDLOBJ)/netdev.o \
diff --git a/src/osd/windows/windows.mak b/src/osd/windows/windows.mak
index fd7800e13a5..fd06d406632 100644
--- a/src/osd/windows/windows.mak
+++ b/src/osd/windows/windows.mak
@@ -367,7 +367,7 @@ OSDOBJS += \
 	$(OSDOBJ)/modules/sound/sdl_sound.o
 endif
 
-ifdef USE_NETWORK
+ifndef DONT_USE_NETWORK
 OSDOBJS += \
 	$(WINOBJ)/netdev.o \
 	$(WINOBJ)/netdev_pcap.o