diff --git a/test/fuzz/test_runner.py b/test/fuzz/test_runner.py
index f4815a5f74..ff3b6e6b6d 100755
--- a/test/fuzz/test_runner.py
+++ b/test/fuzz/test_runner.py
@@ -268,6 +268,7 @@ def generate_corpus(*, fuzz_pool, src_dir, build_dir, corpus_dir, targets):
         use_value_profile = int(random.random() < .3)
         command = [
             os.path.join(build_dir, 'src', 'test', 'fuzz', 'fuzz'),
+            "-rss_limit_mb=8000",
             "-max_total_time=6000",
             "-reload=0",
             f"-use_value_profile={use_value_profile}",