diff --git a/FreeRTOS/Demo/Common/Minimal/GenQTest.c b/FreeRTOS/Demo/Common/Minimal/GenQTest.c
index 6f4c1e7cc..80e8b75c3 100644
--- a/FreeRTOS/Demo/Common/Minimal/GenQTest.c
+++ b/FreeRTOS/Demo/Common/Minimal/GenQTest.c
@@ -57,7 +57,7 @@
 #define genqMUTEX_HIGH_PRIORITY		( tskIDLE_PRIORITY + 3 )
 
 #ifndef genqMUTEX_TEST_TASK_STACK_SIZE
-	#define configMINIMAL_STACK_SIZE
+	#define genqMUTEX_TEST_TASK_STACK_SIZE configMINIMAL_STACK_SIZE
 #endif
 
 #ifndef genqGENERIC_QUEUE_TEST_TASK_STACK_SIZE