Umno vice-president Datuk Seri Dr Ahmad Zahid Hamidi said BN needed to strengthen its "machinery" in order to win back the support of both communities.
"We have to convince them to bring them back into our fold. At one time, when Umno lacked support, it was the BN coalition partners and the Indian and Chinese support that enabled our candidates to win big majorities in the polls. Malay support alone is not good enough."
Speaking after opening the Kuala Kangsar Umno division meeting here yesterday, Zahid also said there was no question of seats lost by Umno's BN partners being handed over to Umno during the next elections.
"The allocation of seats among coalition partners must remain the same. If there are critical seats then the coalition partners must be given other seats."
Zahid also called on the parties not to be complacent when they contested the next elections.
"Complacency is in all places but in Perak the situation is critical as in the last general election, the support for BN had eroded tremendously.
"The next polls is business unusual. We have to work hard and show the people that we are better then the opposition. They (opposition) are not strong.
"They come out with their manifestos with several sweeteners, but they have yet to be fulfilled.
"We cannot be defensive but must remain strong and united to fight back."
Present was Kuala Kangsar Umno division chief Datuk Ramly Zahari.