The 67-year-old has voiced his disappointment at seeing his team pick up just the solitary point on their travels to the Imtech Arena, after insisting he only had eyes for a win
The Bavarians required a late strike from Ivica Olic to salvage a point against Thorsten Fink's outfit, but despite their efforts, the veteran trainer feels his players should not be pleased with their display, and opined they lacked a winning mentality.
"In the first half we played well, but Bayern's targets are a bit bigger, so we cannot be satisfied, it's quite clear," said Heynckes after the match.
"We had to win here, even by force if need be."
Bayern remain second in the Bundesliga, but have now fallen two points behind leaders Borussia Dortmund at the league summit.