diff --git a/stresstest.c b/stresstest.c
index c0fe4a6..cdc44a5 100644
--- a/stresstest.c
+++ b/stresstest.c
@@ -132,7 +132,7 @@ static void fill_random(int64_t *dst, const int size) {
   int i;
 
   for (i = 0; i < size; i++) {
-    dst[i] = lrand48();
+    //dst[i] = lrand48();
   }
 }
 
@@ -276,7 +276,7 @@ int run_tests(int64_t *sizes, int sizes_cnt, int type) {
   double usec1, usec2, diff;
   int64_t * dst = (int64_t *)malloc(MAXSIZE * sizeof(int64_t));
   printf("-------\nRunning tests with %s:\n-------\n", test_names[type]);
-  //TEST_STDLIB(qsort);
+  TEST_STDLIB(qsort);
 // #if !defined(__linux__) && !defined(__CYGWIN__) && !defined(_WIN32)
 //   TEST_STDLIB(heapsort);
 //   TEST_STDLIB(mergesort);