diff --git a/src/include/strings.cpp b/src/include/strings.cpp
index 4b50b9cb0..36f27858d 100755
--- a/src/include/strings.cpp
+++ b/src/include/strings.cpp
@@ -1976,8 +1976,15 @@ void TToken_string::destroy(int n)
     if (sep >= n)
     {
       const char* p = strchr(s, _separator);
-      *s = '\0';
-      if (p != NULL) strcat(s,  p+1);
+
+			if (p != NULL)
+			{
+				*s = '\0';
+				strcat(s, p + 1);
+			}
+			else
+				if (*(--s) == _separator)
+					*s = '\0';
     }
   }
   restart();  
diff --git a/src/include/strings.h b/src/include/strings.h
index ad9953e08..1b12795ee 100755
--- a/src/include/strings.h
+++ b/src/include/strings.h
@@ -674,7 +674,7 @@ public:
 	// @cmember Aggiunge una data
 	void add(const TDate d, int pos = -1);
 	// @cmember Aggiunge un booleano
-	void add(bool on, int pos = -1) { add(on ? "X" : ""); }
+	void add(bool on, int pos = -1) { add(on ? "X" : "", pos); }
   // @cmember Inserisce una stringa
   void insert_at(const char* s, int n);
   // @cmember Toglie la stringa di posizione pos