diff --git a/dlls/wpcap/Makefile.in b/dlls/wpcap/Makefile.in
index 4409a8c9e3a..52e4c9a2921 100644
--- a/dlls/wpcap/Makefile.in
+++ b/dlls/wpcap/Makefile.in
@@ -2,6 +2,8 @@ MODULE    = wpcap.dll
 DELAYIMPORTS = ws2_32
 EXTRALIBS = $(PCAP_LIBS)
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	unixlib.c \
 	wpcap.c