diff --git a/dlls/regapi/Makefile.in b/dlls/regapi/Makefile.in
index 1dda9115bdb..4d8d773f9af 100644
--- a/dlls/regapi/Makefile.in
+++ b/dlls/regapi/Makefile.in
@@ -1,4 +1,6 @@
 MODULE    = regapi.dll
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	main.c