diff --git a/mpp/codec/enc/h265/h265e_slice.c b/mpp/codec/enc/h265/h265e_slice.c
index 903be9a5..efc01d98 100644
--- a/mpp/codec/enc/h265/h265e_slice.c
+++ b/mpp/codec/enc/h265/h265e_slice.c
@@ -367,7 +367,7 @@ void h265e_code_slice_header(H265eSlice *slice, MppWriteCtx *bitIf,
     mpp_writer_put_ue(bitIf, slice->m_ppsId);
 
     if (slice_segment_addr != 0) {
-        while (max_ctu_num > (1 << slice_address_addr_bits)) {
+        while (max_ctu_num > (RK_U32)(1 << slice_address_addr_bits)) {
             slice_address_addr_bits++;
         }
         //slice_segment_address