diff --git a/dlls/winsta/Makefile.in b/dlls/winsta/Makefile.in
index dea3fa3bd56..58f9ca1812d 100644
--- a/dlls/winsta/Makefile.in
+++ b/dlls/winsta/Makefile.in
@@ -1,4 +1,6 @@
 MODULE    = winsta.dll
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	main.c