diff --git a/src/cg/cg2100.cpp b/src/cg/cg2100.cpp
index b1858d47d..927df7dc0 100755
--- a/src/cg/cg2100.cpp
+++ b/src/cg/cg2100.cpp
@@ -345,10 +345,12 @@ bool TPrimanota_application::read_caus(const char* cod, int year)
     
     if (ins)
     {
-			c.reread();    
-		
-      const long protiva = c.reg().protocol() + 1;
-      m->set(F_PROTIVA, protiva, true); // Aggiorna protocollo IVA
+			const TString4 codreg = c.reg().name();
+			const int regyear = c.reg().year();
+			TRegistro r(codreg, regyear);
+	    const long protiva = r.protocol() + 1;
+  
+			m->set(F_PROTIVA, protiva, true); // Aggiorna protocollo IVA
     }
 
     const bool show_notevar = iva == iva_vendite || iva == iva_acquisti;