diff --git a/dlls/dispex/Makefile.in b/dlls/dispex/Makefile.in
index 98a05926727..1f960f0b845 100644
--- a/dlls/dispex/Makefile.in
+++ b/dlls/dispex/Makefile.in
@@ -1,6 +1,8 @@
 MODULE    = dispex.dll
 IMPORTS   = uuid oleaut32 ole32 rpcrt4 advapi32
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	usrmarshal.c