diff --git a/crypto/fipsmodule/bn/internal.h b/crypto/fipsmodule/bn/internal.h
index c3aa21b..e11ee45 100644
--- a/crypto/fipsmodule/bn/internal.h
+++ b/crypto/fipsmodule/bn/internal.h
@@ -123,7 +123,7 @@
 #ifndef OPENSSL_HEADER_BN_INTERNAL_H
 #define OPENSSL_HEADER_BN_INTERNAL_H
 
-#include <openssl/base.h>
+#include <openssl/bn.h>
 
 #if defined(OPENSSL_X86_64) && defined(_MSC_VER)
 OPENSSL_MSVC_PRAGMA(warning(push, 3))