diff --git a/wolfssl/ssl.h b/wolfssl/ssl.h
index 99d3c3c20..64cfcbb3e 100644
--- a/wolfssl/ssl.h
+++ b/wolfssl/ssl.h
@@ -1065,8 +1065,6 @@ WOLFSSL_API int wolfSSL_make_eap_keys(WOLFSSL*, void* key, unsigned int len,
         #ifdef __PPU
             #include <sys/types.h>
             #include <sys/socket.h>
-        #elif defined(WOLFSSL_RIOT_OS)
-            #include <sys/_types/_iovec_t.h>
         #elif !defined(WOLFSSL_MDK_ARM) && !defined(WOLFSSL_IAR_ARM) && \
               !defined(WOLFSSL_PICOTCP) && !defined(WOLFSSL_ROWLEY_ARM) && \
               !defined(WOLFSSL_EMBOS) && !defined(WOLFSSL_FROSTED)
diff --git a/wolfssl/wolfcrypt/settings.h b/wolfssl/wolfcrypt/settings.h
index d602df9b1..eea36f4f5 100644
--- a/wolfssl/wolfcrypt/settings.h
+++ b/wolfssl/wolfcrypt/settings.h
@@ -412,6 +412,7 @@
 #endif
 
 #ifdef WOLFSSL_RIOT_OS
+    #define NO_WRITEV
     #define TFM_NO_ASM
     #define USE_FAST_MATH
     #define NO_FILE_SYSTEM