diff --git a/haversine_02/src/repetition_testing/main.cpp b/haversine_02/src/repetition_testing/main.cpp
index 333114b..b80c339 100644
--- a/haversine_02/src/repetition_testing/main.cpp
+++ b/haversine_02/src/repetition_testing/main.cpp
@@ -242,6 +242,10 @@ int main(int argc, char *argv[]) {
   tester.params.buffer = (char *)malloc(tester.params.read_size + 1);
   memset(tester.params.buffer, 0, tester.params.read_size + 1);
 
+  for (u64 i = 0; i < tester.params.read_size; ++i) {
+    tester.params.buffer[i] = (char)i;
+  }
+
   for (u64 i = 0; i < waves; ++i) {
     for (u64 j = 0; j < ARR_LEN(funcs); ++j) {
       for (u64 k = 0; k < ALLOC_TYPE_WITH_MALLOC; ++k) {