diff --git a/MdeModulePkg/Universal/CapsuleRuntimeDxe/Arm/CapsuleReset.c b/MdeModulePkg/Universal/CapsuleRuntimeDxe/Arm/CapsuleReset.c
index 32579ceefb..d79d2fc693 100644
--- a/MdeModulePkg/Universal/CapsuleRuntimeDxe/Arm/CapsuleReset.c
+++ b/MdeModulePkg/Universal/CapsuleRuntimeDxe/Arm/CapsuleReset.c
@@ -1,4 +1,4 @@
- /** @file
+/** @file
   ARM implementation of architecture specific routines related to
   PersistAcrossReset capsules
 
diff --git a/MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleService.h b/MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleService.h
index 7a5df742f1..787c70c195 100644
--- a/MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleService.h
+++ b/MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleService.h
@@ -17,6 +17,9 @@
 
 **/
 
+#ifndef _CAPSULE_SERVICE_H_
+#define _CAPSULE_SERVICE_H_
+
 #include <Uefi.h>
 
 #include <Protocol/Capsule.h>
@@ -69,3 +72,5 @@ VOID
 CapsuleCacheWriteBack (
   IN  EFI_PHYSICAL_ADDRESS    ScatterGatherList
   );
+
+#endif