3 files changed, 3 insertions, 3 deletions
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED/Makefile b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED/Makefile
index 75d872402..abbcedbc7 100755
--- a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED/Makefile
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED/Makefile
@@ -222,7 +222,7 @@ CPPWARN = -Wall -Wextra -Wundef
 #
 
 # List all user C define here, like -D_DEBUG=1
-UDEFS =
+UDEFS = -DCH_CFG_USE_MMU
 
 # Define ASM defines here
 UADEFS =
diff --git a/os/common/startup/ARMCAx-TZ/devices/SAMA5D2/mmu.c b/os/common/startup/ARMCAx-TZ/devices/SAMA5D2/mmu.c
index c2f58a266..5688f52ab 100644
--- a/os/common/startup/ARMCAx-TZ/devices/SAMA5D2/mmu.c
+++ b/os/common/startup/ARMCAx-TZ/devices/SAMA5D2/mmu.c
@@ -25,7 +25,7 @@
  * @{
  */
 
-#if !defined(CH_CFG_USE_MMU) || defined(__DOXYGEN__)
+#if defined(CH_CFG_USE_MMU) || defined(__DOXYGEN__)
 
 #include <stddef.h>
 #include <stdint.h>
diff --git a/os/common/startup/ARMCAx-TZ/devices/SAMA5D2/mmu.h b/os/common/startup/ARMCAx-TZ/devices/SAMA5D2/mmu.h
index 18a2a5510..6e0bd9a32 100644
--- a/os/common/startup/ARMCAx-TZ/devices/SAMA5D2/mmu.h
+++ b/os/common/startup/ARMCAx-TZ/devices/SAMA5D2/mmu.h
@@ -28,7 +28,7 @@
 #ifndef MMU_H
 #define MMU_H
 
-#if !defined(CH_CFG_USE_MMU) || defined(__DOXYGEN__)
+#if defined(CH_CFG_USE_MMU) || defined(__DOXYGEN__)
 
 /*===========================================================================*/
 /* Module constants.                                                         */