diff --git a/kwrechner/kwrechner.cpp b/kwrechner/kwrechner.cpp
index 0a331f0..ccb9831 100644
--- a/kwrechner/kwrechner.cpp
+++ b/kwrechner/kwrechner.cpp
@@ -148,7 +148,7 @@ int main()
 	getline(cin, str);
 
 	tag = stoi(str.substr(0, str.find('.')));
-	monat = stoi(str.substr(str.find('.')+1, str.find('.')));
+	monat = stoi(str.substr(str.find('.')+1, str.find('.')+1));
 	jahr = stoi(str.substr(str.find('.', 3) + 1));
 
 	//cout << "tag: " << tag << "monat: " << monat << "jahr " << jahr;