diff --git a/src/shared/Common.h b/src/shared/Common.h
index e525f868e..a804ef45b 100644
--- a/src/shared/Common.h
+++ b/src/shared/Common.h
@@ -97,6 +97,13 @@
 #include <ace/Thread_Mutex.h>
 #include <ace/OS_NS_arpa_inet.h>
 
+// Old ACE versions (pre-ACE-5.5.4) not have this type (add for allow use at Unix side external old ACE versions)
+#if PLATFORM != PLATFORM_WINDOWS
+#  ifndef ACE_OFF_T
+typedef off_t ACE_OFF_T;
+#  endif
+#endif
+
 #if PLATFORM == PLATFORM_WINDOWS
 #  if !defined (FD_SETSIZE)
 #    define FD_SETSIZE 4096
diff --git a/src/shared/revision_nr.h b/src/shared/revision_nr.h
index b72d78909..662932d71 100644
--- a/src/shared/revision_nr.h
+++ b/src/shared/revision_nr.h
@@ -1,4 +1,4 @@
 #ifndef __REVISION_NR_H__
 #define __REVISION_NR_H__
- #define REVISION_NR "10788"
+ #define REVISION_NR "10789"
 #endif // __REVISION_NR_H__