diff --git a/applications/threadx_demo/main.cpp b/applications/threadx_demo/main.cpp
index 94430ee..f813ee4 100644
--- a/applications/threadx_demo/main.cpp
+++ b/applications/threadx_demo/main.cpp
@@ -46,7 +46,7 @@
 // Nr. of jobs to create per job thread
 #define NUM_JOBS_PER_THREAD 1
 
-#define PROCESS_THREAD_STACK_SIZE   (16 * 1024)
+#define PROCESS_THREAD_STACK_SIZE   (20 * 1024)
 #define SENDER_THREAD_STACK_SIZE    (2 * 1024)
 #define PROCESS_THREAD_CONTEXT_SIZE (sizeof(TX_THREAD))
 #define SENDER_THREAD_CONTEXT_SIZE  (sizeof(TX_THREAD))