diff --git a/doc/Ericsoft.docx b/doc/Ericsoft.docx
new file mode 100644
index 000000000..9dbe198f9
Binary files /dev/null and b/doc/Ericsoft.docx differ
diff --git a/src/cg/cgsaldac.cpp b/src/cg/cgsaldac.cpp
index 149e8007c..6d947b67c 100755
--- a/src/cg/cgsaldac.cpp
+++ b/src/cg/cgsaldac.cpp
@@ -560,7 +560,7 @@ TImporto TRiga_scadenze::residuo_al(bool val, const TDate& al, int mode, bool da
 {
 	TImporto res = importo(val);
 	
-	res -= importo_pagato_al(val, al, mode, datareg);
+	res += importo_pagato_al(val, al, mode, datareg);
 	return res;
 }