diff --git a/Kconfig b/Kconfig
index b780766b768..c90b68fa65c 100644
--- a/Kconfig
+++ b/Kconfig
@@ -29,7 +29,7 @@ config DEFAULT_SMALL
 
 config DEFAULT_TASK_STACKSIZE
 	int "The default stack size for tasks"
-	default 8192 if ARCH_SIM
+	default 65536 if ARCH_SIM
 	default 2048
 	---help---
 		The default stack size for tasks.