diff --git a/crypto/bf/bf_locl.h b/crypto/bf/bf_locl.h
index 3ebb145..05756b5 100644
--- a/crypto/bf/bf_locl.h
+++ b/crypto/bf/bf_locl.h
@@ -56,8 +56,8 @@
  * [including the GNU Public Licence.]
  */
 
-#ifndef _HEADER_BF_LOCL_H
-#define _HEADER_BF_LOCL_H
+#ifndef HEADER_BF_LOCL_H
+#define HEADER_BF_LOCL_H
 #include <openssl/opensslconf.h> /* BF_PTR, BF_PTR2 */
 
 #undef c2l
diff --git a/crypto/rc4/rc4_locl.h b/crypto/rc4/rc4_locl.h
index 0448b06..3bb80b6 100644
--- a/crypto/rc4/rc4_locl.h
+++ b/crypto/rc4/rc4_locl.h
@@ -1,4 +1,4 @@
-#ifndef _HEADER_RC4_LOCL_H
-#define _HEADER_RC4_LOCL_H
+#ifndef HEADER_RC4_LOCL_H
+#define HEADER_RC4_LOCL_H
 #include <openssl/opensslconf.h>
 #endif