diff --git a/crypto/ui/ui_openssl.c b/crypto/ui/ui_openssl.c
index c4e8c9c54b4035e6ce3536f50abe27644022c7e7..89330f4798d2c8b7c03b9dd12a225cc2481b0aba 100644
--- a/crypto/ui/ui_openssl.c
+++ b/crypto/ui/ui_openssl.c
@@ -115,7 +115,7 @@
  */
 
 
-#include <openssl/opensslconf.h>
+#include <openssl/e_os2.h>
 
 #if !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VMS)
 # ifdef OPENSSL_UNISTD