diff --git a/benchmarks/roc-nea/varying-allocations.roc b/benchmarks/roc-nea/varying-allocations.roc
index 122a324..eec2abe 100644
--- a/benchmarks/roc-nea/varying-allocations.roc
+++ b/benchmarks/roc-nea/varying-allocations.roc
@@ -16,7 +16,7 @@ main = \input ->
             capacity = parseU64 after * 1024
 
             x : List U8
-            x = List.withCapacity capacity
+            x = List.repeat 0xAA capacity
 
             Num.toStr (List.len x)