diff --git a/cyassl/ssl.h b/cyassl/ssl.h
index ae4abfbf0..13bb20cee 100644
--- a/cyassl/ssl.h
+++ b/cyassl/ssl.h
@@ -1014,8 +1014,12 @@ enum {
     CYASSL_MFL_2_13 = 5  /* 8192 bytes *//* CyaSSL ONLY!!! */
 };
 
+#ifndef NO_CYASSL_CLIENT
+
 CYASSL_API int CyaSSL_UseMaxFragment(CYASSL* ssl, unsigned char mfl);
 CYASSL_API int CyaSSL_CTX_UseMaxFragment(CYASSL_CTX* ctx, unsigned char mfl);
+
+#endif /* NO_CYASSL_CLIENT */
 #endif /* HAVE_MAX_FRAGMENT */
 
 
diff --git a/src/ssl.c b/src/ssl.c
index e06cd1649..3af1a320f 100644
--- a/src/ssl.c
+++ b/src/ssl.c
@@ -568,6 +568,7 @@ word16 CyaSSL_SNI_GetRequest(CYASSL* ssl, byte type, void** data)
 
 
 #ifdef HAVE_MAX_FRAGMENT
+#ifndef NO_CYASSL_CLIENT
 int CyaSSL_UseMaxFragment(CYASSL* ssl, byte mfl)
 {
     if (ssl == NULL)
@@ -583,6 +584,7 @@ int CyaSSL_CTX_UseMaxFragment(CYASSL_CTX* ctx, byte mfl)
 
     return TLSX_UseMaxFragment(&ctx->extensions, mfl);
 }
+#endif /* NO_CYASSL_CLIENT */
 #endif /* HAVE_MAX_FRAGMENT */
 
 #ifndef CYASSL_LEANPSK