diff --git a/src/db/dblib.cpp b/src/db/dblib.cpp
index 08530f194..73aec373e 100755
--- a/src/db/dblib.cpp
+++ b/src/db/dblib.cpp
@@ -297,7 +297,7 @@ real TLavorazione::prezzo() const
   {
     if (is_euro_value(""))  // Se la ditta è in Euro
     {
-      TPrice pr(get_real("R0") / 1936.27);
+      TPrice pr(get_real("R0") / real(1936.27));
       p = pr.get_num();
     }
     else