Ruddy was one of the surprises from Hodgson's Euros squad.
"When he was told (of his call-up) he offered to postpone the wedding but I said not to do that," Hodgson said at a Wembley press conference.
"I think it's a bit dangerous to cancel weddings at the last moment. This is a football match, it's not the end of the world.
"I suggested we deal with the Belgium game with Joe Hart and Rob Green and we'll welcome him back on the plane when we go to Poland."
The England boss said the decision to bring in Ruddy came partly from the fact there are few goalkeepers qualified for the national team playing at a high level, and partly because of his fine form for Norwich.
"You understand we don't have so many English goalkeepers to choose from," Hodgson said. "John's had an excellent season with Norwich. Norwich have had an excellent season, they've surprised everybody and taken the Premier League by storm.
"He's been a very important player in that team.