diff --git a/src/pkg/runtime/hashmap.go b/src/pkg/runtime/hashmap.go
index 309e26d..1bdceab 100644
--- a/src/pkg/runtime/hashmap.go
+++ b/src/pkg/runtime/hashmap.go
@@ -219,7 +219,7 @@
 	h.count = 0
 	h.B = B
 	h.flags = 0
-	h.hash0 = fastrand2()
+	h.hash0 = fastrand1()
 	h.buckets = buckets
 	h.oldbuckets = nil
 	h.nevacuate = 0
@@ -568,7 +568,7 @@
 
 	// iterator state
 	it.bucket = 0
-	it.offset = uint8(fastrand2() & (bucketCnt - 1))
+	it.offset = uint8(fastrand1() & (bucketCnt - 1))
 	it.done = false
 	it.bptr = nil