diff --git a/portable/ThirdParty/GCC/Posix/port.c b/portable/ThirdParty/GCC/Posix/port.c
index c18705a49..bd0842fbf 100644
--- a/portable/ThirdParty/GCC/Posix/port.c
+++ b/portable/ThirdParty/GCC/Posix/port.c
@@ -148,7 +148,12 @@ portSTACK_TYPE * pxPortInitialiseStack( portSTACK_TYPE * pxTopOfStack,
     thread->xDying = pdFALSE;
 
     pthread_attr_init( &xThreadAttributes );
-    pthread_attr_setstack( &xThreadAttributes, pxEndOfStack, ulStackSize );
+    iRet = pthread_attr_setstack( &xThreadAttributes, pxEndOfStack, ulStackSize );
+    if( iRet != 0 )
+    {
+        fprintf( stderr, "[WARN] pthread_attr_setstack failed with return value: %d. Default stack will be used.\n", iRet );
+        fprintf( stderr, "[WARN] Increase the stack size to PTHREAD_STACK_MIN.\n" );
+    }
 
     thread->ev = event_create();