Ronaldo helped Real go ten points clear at the top of the table.
He said: "We knew the match would be difficult and we didn't have a good start. We changed after the first goal. We're fine and must keep this up till the end of the season, but there are still many games left.
"Goals happen thanks to the effort of the entire team. We're playing well and I'm having a good run that I want to keep up.
"I was extremely happy after scoring one goal and I wanted to celebrate it with the manager and his staff because we are all doing a great job."