diff --git a/src/tasks.c b/src/tasks.c
index d0522f6..ab45f53 100644
--- a/src/tasks.c
+++ b/src/tasks.c
@@ -834,8 +834,8 @@ static void prvInitialiseNewTask(TaskFunction_t pxTaskCode,
 #if (tskSET_NEW_STACKS_TO_KNOWN_VALUE == 1)
     {
         /* Fill the stack with a known value to assist debugging. */
-//        ( void ) memset( pxNewTCB->pxStack, ( int ) tskSTACK_FILL_BYTE, ( size_t ) ulStackDepth * sizeof( StackType_t ) );
-
+        ( void ) memset( pxNewTCB->pxStack, ( int ) tskSTACK_FILL_BYTE, ( size_t ) ulStackDepth * sizeof( StackType_t ) );
+/*
         size_t k = 0;
         while (k < (size_t) ulStackDepth) {
             ((uint8_t *) pxNewTCB->pxStack)[0] = tskSTACK_FILL_BYTE;
@@ -844,7 +844,7 @@ static void prvInitialiseNewTask(TaskFunction_t pxTaskCode,
             ((uint8_t *) pxNewTCB->pxStack)[3] = tskSTACK_FILL_BYTE;
             ++k;
         }
-
+*/
 
     }
 #endif /* tskSET_NEW_STACKS_TO_KNOWN_VALUE */