diff --git a/Demo/PPC405_FPU_Xilinx_Virtex4_GCC/RTOSDemo/FreeRTOSConfig.h b/Demo/PPC405_FPU_Xilinx_Virtex4_GCC/RTOSDemo/FreeRTOSConfig.h
index 7c18d73bc..37a39bd99 100644
--- a/Demo/PPC405_FPU_Xilinx_Virtex4_GCC/RTOSDemo/FreeRTOSConfig.h
+++ b/Demo/PPC405_FPU_Xilinx_Virtex4_GCC/RTOSDemo/FreeRTOSConfig.h
@@ -73,7 +73,7 @@
 #define configMAX_PRIORITIES			( ( unsigned portBASE_TYPE ) 6 )
 #define configTOTAL_HEAP_SIZE			( (size_t) (80 * 1024) )
 #define configMAX_TASK_NAME_LEN			( 20 )
-#define configUSE_16_BIT_TICKS			1
+#define configUSE_16_BIT_TICKS			0
 #define configIDLE_SHOULD_YIELD			1
 #define configUSE_MUTEXES				1
 #define configUSE_TRACE_FACILITY		0
diff --git a/Demo/PPC405_Xilinx_Virtex4_GCC/RTOSDemo/FreeRTOSConfig.h b/Demo/PPC405_Xilinx_Virtex4_GCC/RTOSDemo/FreeRTOSConfig.h
index 248e2a695..8f1a34e8a 100644
--- a/Demo/PPC405_Xilinx_Virtex4_GCC/RTOSDemo/FreeRTOSConfig.h
+++ b/Demo/PPC405_Xilinx_Virtex4_GCC/RTOSDemo/FreeRTOSConfig.h
@@ -73,7 +73,7 @@
 #define configMAX_PRIORITIES			( ( unsigned portBASE_TYPE ) 6 )
 #define configTOTAL_HEAP_SIZE			( (size_t) (80 * 1024) )
 #define configMAX_TASK_NAME_LEN			( 20 )
-#define configUSE_16_BIT_TICKS			1
+#define configUSE_16_BIT_TICKS			0
 #define configIDLE_SHOULD_YIELD			1
 #define configUSE_MUTEXES				1
 #define configUSE_TRACE_FACILITY		0