diff --git a/ext/openssl/ossl.h b/ext/openssl/ossl.h
index 39699bd5e6..6af7ddd7d0 100644
--- a/ext/openssl/ossl.h
+++ b/ext/openssl/ossl.h
@@ -27,7 +27,6 @@
 #include <openssl/hmac.h>
 #include <openssl/rand.h>
 #include <openssl/conf.h>
-#include <openssl/conf_api.h>
 #include <openssl/crypto.h>
 #if !defined(OPENSSL_NO_ENGINE)
 #  include <openssl/engine.h>