diff --git a/riscemu/Config.py b/riscemu/Config.py
index a362eaa..cc1d74f 100644
--- a/riscemu/Config.py
+++ b/riscemu/Config.py
@@ -10,7 +10,7 @@ from typing import Optional
 
 @dataclass(frozen=True, init=True)
 class RunConfig:
-    stack_size: int = 0     # 8 * 1024 * 1024 * 8 # for 8MB stack
+    stack_size: int = 8 * 1024 * 64 # for 8KB stack
     include_scall_symbols: bool = True
     add_accept_imm: bool = False
     # debugging