diff --git a/examples/sctp/sctp-client-dtls.c b/examples/sctp/sctp-client-dtls.c
index d90fe2b4b..f07051795 100644
--- a/examples/sctp/sctp-client-dtls.c
+++ b/examples/sctp/sctp-client-dtls.c
@@ -70,6 +70,10 @@ int main()
     if (ctx == NULL)
         err_sys("ctx new dtls client failed");
 
+    ret = wolfSSL_CTX_dtls_set_sctp(ctx);
+    if (ret != SSL_SUCCESS)
+        err_sys("set sctp mode failed");
+
     ret = wolfSSL_CTX_load_verify_locations(ctx, cacert, NULL);
     if (ret != SSL_SUCCESS)
         err_sys("ca cert error");
@@ -95,6 +99,22 @@ int main()
         printf("server said: %s\n", buffer);
     }
 
+    unsigned char bigBuf[4096];
+    unsigned int i;
+
+    for (i = 0; i < (int)sizeof(bigBuf); i++)
+        bigBuf[i] = (unsigned char)(i & 0xFF);
+    wolfSSL_write(ssl, bigBuf, sizeof(bigBuf));
+    memset(bigBuf, 0, sizeof(bigBuf));
+
+    wolfSSL_read(ssl, bigBuf, sizeof(bigBuf));
+    for (i = 0; i < sizeof(bigBuf); i++) {
+        if (bigBuf[i] != (unsigned char)(i & 0xFF)) {
+            printf("big message check fail\n");
+            break;
+        }
+    }
+
     wolfSSL_shutdown(ssl);
     wolfSSL_free(ssl);
     wolfSSL_CTX_free(ctx);
diff --git a/examples/sctp/sctp-server-dtls.c b/examples/sctp/sctp-server-dtls.c
index 8bf90cda3..7a58bf18e 100644
--- a/examples/sctp/sctp-server-dtls.c
+++ b/examples/sctp/sctp-server-dtls.c
@@ -76,6 +76,10 @@ int main()
     if (ctx == NULL)
         err_sys("ctx new dtls server failed");
 
+    ret = wolfSSL_CTX_dtls_set_sctp(ctx);
+    if (ret != SSL_SUCCESS)
+        err_sys("set sctp mode failed");
+
     ret = wolfSSL_CTX_use_PrivateKey_file(ctx, key, SSL_FILETYPE_PEM);
     if (ret != SSL_SUCCESS)
         err_sys("use private key error");
@@ -105,6 +109,11 @@ int main()
     }
     wolfSSL_write(ssl, response, (int)strlen(response));
 
+    unsigned char bigBuf[4096];
+
+    got = wolfSSL_read(ssl, bigBuf, sizeof(bigBuf));
+    wolfSSL_write(ssl, bigBuf, sizeof(bigBuf));
+
     wolfSSL_shutdown(ssl);
     wolfSSL_free(ssl);
     wolfSSL_CTX_free(ctx);