diff --git a/dlls/olethk32/Makefile.in b/dlls/olethk32/Makefile.in
index 1a8f17ad132..6888b46c3df 100644
--- a/dlls/olethk32/Makefile.in
+++ b/dlls/olethk32/Makefile.in
@@ -1,5 +1,7 @@
 MODULE    = olethk32.dll
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = main.c
 
 RC_SRCS = version.rc