diff --git a/h_malloc.c b/h_malloc.c
index 409fa2b..517af02 100644
--- a/h_malloc.c
+++ b/h_malloc.c
@@ -1093,7 +1093,7 @@ COLD static void init_slow_path(void) {
     struct region_allocator *ra = ro.region_allocator;
 
     mutex_init(&ra->lock);
-    random_state_init(&ra->rng);
+    random_state_init_from_random_state(&ra->rng, rng);
     ro.regions[0] = allocator_state->regions_a;
     ro.regions[1] = allocator_state->regions_b;
     ra->regions = ro.regions[0];
@@ -1116,7 +1116,7 @@ COLD static void init_slow_path(void) {
             struct size_class *c = &ro.size_class_metadata[arena][class];
 
             mutex_init(&c->lock);
-            random_state_init(&c->rng);
+            random_state_init_from_random_state(&c->rng, rng);
 
             size_t bound = (REAL_CLASS_REGION_SIZE - CLASS_REGION_SIZE) / PAGE_SIZE - 1;
             size_t gap = (get_random_u64_uniform(rng, bound) + 1) * PAGE_SIZE;
diff --git a/random.c b/random.c
index ae242c4..c6dc759 100644
--- a/random.c
+++ b/random.c
@@ -44,6 +44,16 @@ void random_state_init(struct random_state *state) {
     state->reseed = 0;
 }
 
+void random_state_init_from_random_state(struct random_state *state, struct random_state *source) {
+    u8 rnd[CHACHA_KEY_SIZE + CHACHA_IV_SIZE];
+    get_random_bytes(source, rnd, sizeof(rnd));
+    chacha_keysetup(&state->ctx, rnd);
+    chacha_ivsetup(&state->ctx, rnd + CHACHA_KEY_SIZE);
+    chacha_keystream_bytes(&state->ctx, state->cache, RANDOM_CACHE_SIZE);
+    state->index = 0;
+    state->reseed = 0;
+}
+
 static void refill(struct random_state *state) {
     if (state->reseed < RANDOM_RESEED_SIZE) {
         chacha_keystream_bytes(&state->ctx, state->cache, RANDOM_CACHE_SIZE);
diff --git a/random.h b/random.h
index 629b18a..14703bb 100644
--- a/random.h
+++ b/random.h
@@ -15,6 +15,7 @@ struct random_state {
 };
 
 void random_state_init(struct random_state *state);
+void random_state_init_from_random_state(struct random_state *state, struct random_state *source);
 void get_random_bytes(struct random_state *state, void *buf, size_t size);
 u16 get_random_u16(struct random_state *state);
 u16 get_random_u16_uniform(struct random_state *state, u16 bound);