diff --git a/dlls/atlthunk/Makefile.in b/dlls/atlthunk/Makefile.in
index 1adeedf6654..b41ff941be5 100644
--- a/dlls/atlthunk/Makefile.in
+++ b/dlls/atlthunk/Makefile.in
@@ -1,5 +1,7 @@
 MODULE    = atlthunk.dll
 IMPORTLIB = atlthunk
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	atlthunk.c