diff --git a/wolfcrypt/src/asn.c b/wolfcrypt/src/asn.c
index 9a1ed7a11..240922f99 100644
--- a/wolfcrypt/src/asn.c
+++ b/wolfcrypt/src/asn.c
@@ -162,6 +162,9 @@ extern int wc_InitRsaHw(RsaKey* key);
     #include <wolfssl/wolfcrypt/cryptocb.h>
 #endif
 
+#ifdef WOLFSSL_IP_ALT_NAME
+    #include <wolfssl/ssl.h>
+#endif
 #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL)
     #include <wolfssl/internal.h>
     #include <wolfssl/openssl/objects.h>