diff --git a/lib/fizzy/stack.hpp b/lib/fizzy/stack.hpp
index 1756b03b7..ee5357c0b 100644
--- a/lib/fizzy/stack.hpp
+++ b/lib/fizzy/stack.hpp
@@ -53,7 +53,7 @@ class Stack
 class OperandStack
 {
     /// The size of the pre-allocated internal storage: 128 bytes.
-    static constexpr auto small_storage_size = 1024 / sizeof(Value);
+    static constexpr auto small_storage_size = 2048 / sizeof(Value);
 
     /// The pointer to the top item, or below the stack bottom if stack is empty.
     ///