diff --git a/p2p/integrationtest/real-bidder/main.go b/p2p/integrationtest/real-bidder/main.go
index b02943058..3159b7889 100644
--- a/p2p/integrationtest/real-bidder/main.go
+++ b/p2p/integrationtest/real-bidder/main.go
@@ -224,17 +224,13 @@ func main() {
 					continue
 				}
 
-				bundleLen := rand.Intn(10)
-				bundleStart := rand.Intn(len(currentBlock.txns) - 1)
-				bundleEnd := bundleStart + bundleLen
-				if bundleEnd > len(currentBlock.txns) {
-					bundleEnd = len(currentBlock.txns) - 1
-				}
+				bundleStart := rand.Intn(len(currentBlock.txns))
+				bundleEnd := min(bundleStart+rand.Intn(10), len(currentBlock.txns)-1)
+
+				const dMin, dMax = 5000, 10000
+				startTimeDiff := rand.Int63n(dMax-dMin+1) + dMin
+				endTimeDiff := rand.Int63n(dMax-dMin+1) + dMin
 
-				min := 5000
-				max := 10000
-				startTimeDiff := rand.Intn(max-min+1) + min
-				endTimeDiff := rand.Intn(max-min+1) + min
 				err = sendBid(
 					bidderClient,
 					logger,