diff --git a/main.c b/main.c
index 9ca7530..e37b4fc 100644
--- a/main.c
+++ b/main.c
@@ -25,7 +25,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-
+#include <stdint.h>
 /* settings */

 int rounds = 500000;
@@ -232,9 +232,13 @@ runtest(struct part *p, struct test *t)
        for (k = 0; k < passes; k++) {
                fprintf(stderr, ".");

+               uint64_t i = rounds, len = strlen(t->string) + 1;
+               char buff[len + 4096];
+
                gettimeofday(&begin, NULL);
-               for (i = 0; i < rounds; i++)
-                       go(p, t->string, t->needle);
+               do {
+                 p->f(memcpy(buff, t->string, len), t->needle);
+               } while(--i);
                gettimeofday(&end, NULL);

                time = (end.tv_sec - begin.tv_sec) * 1000.0;