diff --git a/include/prefix.cpp b/include/prefix.cpp
index 81483f543..5c3054872 100755
--- a/include/prefix.cpp
+++ b/include/prefix.cpp
@@ -1360,12 +1360,13 @@ int TTable_names::logic_num(const TString& n)
     return num;
   } 
 
-  if (namelen == 3)
+  name.upper();
+  // ATTENZIONE: NON includere qui MAG!
+  if (namelen == 3 && name != "DOC" && name != "MOV") 
     return LF_TAB;
   if (namelen == 4 && name[0] == '%')
     return LF_TABCOM;
 
-  name.upper();
 	TString* str = (TString*)_names.objptr(name);
   if (str == NULL)
   {