The 45-year-old credited the immense effort of his players following their hard-fought win but also criticized the club's supporters.
Barcelona coach Luis Enrique praised the spirit his side showed in the absence of Lionel Messi to overcome Bayer Leverkusen 2-1 on Tuesday.
The European champion was without its talisman for the Champions League clash and suffered, going down first to Kyriakos Papadopoulos' goal before struggling to break through a compact Leverkusen defense.
Late goals from Sergi Roberto and Luis Suarez eventually turned the tide though, and the coach was pleased with the mental strength his side displayed.