A method of video decoding is provided. In the method, a coded video bitstream including a current picture is received. Whether a current block included in the current picture is coded in an intra block copy (IBC) mode is determined. In response to determining that the current block is coded in the IBC mode, a maximum number of IBC predictor candidates associated with the current block is determined as equal to a value of max(M, MaxNumMergeCand). The MaxNumMergeCand is equal to a number of candidates in a merge mode list and the M is a predetermined integer. An IBC predictor candidate list is constructed based on the maximum number of IBC predictor candidates. A block vector associated with the current block is determined based on a block vector predictor included in the IBC predictor candidate list. The current block is reconstructed based on the block vector.