diff --git a/dlls/twain_32/Makefile.in b/dlls/twain_32/Makefile.in
index c82b5a74453..6fb2126f9b7 100644
--- a/dlls/twain_32/Makefile.in
+++ b/dlls/twain_32/Makefile.in
@@ -1,6 +1,8 @@
 MODULE    = twain_32.dll
 IMPORTS   = user32
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	dsm_ctrl.c \
 	twain32_main.c
diff --git a/dlls/twain_32/dsm_ctrl.c b/dlls/twain_32/dsm_ctrl.c
index 0b2098654f8..3f7ead43f19 100644
--- a/dlls/twain_32/dsm_ctrl.c
+++ b/dlls/twain_32/dsm_ctrl.c
@@ -19,8 +19,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#include "config.h"
-
 #include <stdlib.h>
 #include <stdarg.h>
 #include <stdio.h>
diff --git a/dlls/twain_32/twain32_main.c b/dlls/twain_32/twain32_main.c
index 016680b96eb..b1beb969580 100644
--- a/dlls/twain_32/twain32_main.c
+++ b/dlls/twain_32/twain32_main.c
@@ -19,8 +19,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#include "config.h"
-
 #include <stdarg.h>
 
 #include "windef.h"
diff --git a/dlls/twain_32/twain_i.h b/dlls/twain_32/twain_i.h
index 4d33135344e..7939d233bb0 100644
--- a/dlls/twain_32/twain_i.h
+++ b/dlls/twain_32/twain_i.h
@@ -20,10 +20,6 @@
 #ifndef _TWAIN32_H
 #define _TWAIN32_H
 
-#ifndef __WINE_CONFIG_H
-# error You must include config.h first
-#endif
-
 #include <stdarg.h>
 
 #include "windef.h"