diff --git a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/Makefile b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/Makefile
index 3a8e6506..f179b6cd 100644
--- a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/Makefile
+++ b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/Makefile
@@ -197,6 +197,9 @@ endif
 ifeq ($(IGNORE_INTERNAL_STATE), 1)
     CFLAGS += -D IGNORE_INTERNAL_STATE=1
 endif
+ifeq ($(INSERT_WC), 1)
+    CFLAGS += -D INSERT_WC=1
+endif
 CFLAGS += $(SPECIAL_CFLAGS)
 
 DEFINES :=  -DQEMU_SOC_MPS2 -DHEAP3
diff --git a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/main_waters.c b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/main_waters.c
index f0e4257b..614c7b1f 100644
--- a/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/main_waters.c
+++ b/FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/main_waters.c
@@ -33,8 +33,6 @@
 #define NUM_TASKS 10
 #include "fuzzhelper.c"
 
-#define INSERT_WC
-
 #ifdef INSERT_WC
     #define DEBUG_VAL(X,D) (D)
     #define WCET_CLAMP(X, LB, UB, LABEL) WASTE_NSEC(UB)