diff --git a/src/mms/inc_private/mms_common_internal.h b/src/mms/inc_private/mms_common_internal.h
index f096e7bc..0c508fbf 100644
--- a/src/mms/inc_private/mms_common_internal.h
+++ b/src/mms/inc_private/mms_common_internal.h
@@ -1,7 +1,7 @@
 /*
  *  mms_common_internal.h
  *
- *  Copyright 2013-2019 Michael Zillgith
+ *  Copyright 2013-2024 Michael Zillgith
  *
  *  This file is part of libIEC61850.
  *
@@ -34,6 +34,8 @@
 #define DEFAULT_MAX_SERV_OUTSTANDING_CALLED 5
 #define DEFAULT_DATA_STRUCTURE_NESTING_LEVEL 10
 
+typedef struct sMmsOutstandingCall* MmsOutstandingCall;
+
 #if (MMS_FILE_SERVICE == 1)
 
 #ifndef CONFIG_MMS_MAX_NUMBER_OF_OPEN_FILES_PER_CONNECTION
@@ -42,8 +44,6 @@
 
 #include "hal_filesystem.h"
 
-typedef struct sMmsOutstandingCall* MmsOutstandingCall;
-
 typedef struct {
         int32_t frsmId;
         uint32_t readPosition;