diff --git a/src/components.c b/src/components.c
index fc527a97b4..2e0d8c0994 100644
--- a/src/components.c
+++ b/src/components.c
@@ -35,7 +35,7 @@
 
 #ifdef RT_USING_USER_MAIN
 #ifndef RT_MAIN_THREAD_STACK_SIZE
-#define RT_MAIN_THREAD_STACK_SIZE     512
+#define RT_MAIN_THREAD_STACK_SIZE     2048
 #endif
 #endif