diff --git a/cmd/tools/bench/wyhash.v b/cmd/tools/bench/wyhash.v
index 0ec9413c78..9c2f5e3063 100644
--- a/cmd/tools/bench/wyhash.v
+++ b/cmd/tools/bench/wyhash.v
@@ -6,6 +6,8 @@ import rand
 import time
 
 fn main() {
+	rand.seed([u32(42), 0])
+	mut aaa := u64(0)
 	sample_size := 10000000
 	min_str_len := 20
 	max_str_len := 40
@@ -21,32 +23,38 @@ fn main() {
 	println('Hashing each of the generated strings...')
 	t0 := time.ticks()
 	mut start_pos := 0
+	aaa = 0
 	for len in str_lens {
 		end_pos := start_pos + len
-		str := string(bytepile[start_pos..end_pos],len)
-		wyhash.wyhash_c(&str.str, u64(str.len), 1)
+		str := string(bytepile[start_pos..end_pos], len)
+		aaa ^= wyhash.wyhash_c(&str.str, u64(str.len), 1)
 		start_pos = end_pos
 	}
+	println('aaa: $aaa')
 	t1 := time.ticks()
 	d1 := t1 - t0
 	println(' * wyhash4 C: ${d1}ms')
 	start_pos = 0
+	aaa = 0
 	for len in str_lens {
 		end_pos := start_pos + len
-		str := string(bytepile[start_pos..end_pos],len)
-		wyhash.sum64_string(str, 1)
+		str := string(bytepile[start_pos..end_pos], len)
+		aaa ^= wyhash.sum64_string(str, 1)
 		start_pos = end_pos
 	}
+	println('aaa: $aaa')
 	t2 := time.ticks()
 	d2 := t2 - t1
 	println(' * wyhash4: ${d2}ms')
 	start_pos = 0
+	aaa = 0
 	for len in str_lens {
 		end_pos := start_pos + len
-		str := string(bytepile[start_pos..end_pos],len)
-		fnv1a.sum64_string(str)
+		str := string(bytepile[start_pos..end_pos], len)
+		aaa ^= fnv1a.sum64_string(str)
 		start_pos = end_pos
 	}
+	println('aaa: $aaa')
 	t3 := time.ticks()
 	d3 := t3 - t2
 	println(' * fnv1a64: ${d3}ms')