diff --git a/tests/fuzz/fuzz_dtlsserver.c b/tests/fuzz/fuzz_dtlsserver.c
index 6f31bfb..d50b0ad 100644
--- a/tests/fuzz/fuzz_dtlsserver.c
+++ b/tests/fuzz/fuzz_dtlsserver.c
@@ -72,7 +72,7 @@
     ret = mbedtls_ctr_drbg_random(p_rng, output, output_len);
     for (i=0; i<output_len; i++) {
         //replace result with pseudo random
-        output[i] = (unsigned char) random();
+        output[i] = (unsigned char) rand();
     }
     return( ret );
 }
@@ -87,7 +87,7 @@
     //ret = mbedtls_entropy_func(data, output, len);
     for (i=0; i<len; i++) {
         //replace result with pseudo random
-        output[i] = (unsigned char) random();
+        output[i] = (unsigned char) rand();
     }
     return( 0 );
 }
@@ -140,7 +140,7 @@
         goto exit;
 
 
-    srandom(1);
+    srand(1);
     mbedtls_ssl_conf_rng( &conf, dummy_random, &ctr_drbg );
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)