diff --git a/paddle/fluid/operators/detection/CMakeLists.txt b/paddle/fluid/operators/detection/CMakeLists.txt
index 0f53224c13b158ad8526bf50e3cf7687c38154f9..e568de73c0abf2e5ad0d4aeaa2edd510a3dc09b4 100644
--- a/paddle/fluid/operators/detection/CMakeLists.txt
+++ b/paddle/fluid/operators/detection/CMakeLists.txt
@@ -47,6 +47,7 @@ if(WITH_XPU)
 elseif(WITH_MLU)
   detection_library(iou_similarity_op SRCS iou_similarity_op.cc
                     iou_similarity_op_mlu.cc)
+  detection_library(prior_box_op SRCS prior_box_op.cc)
 elseif(WITH_ASCEND_CL)
   detection_library(iou_similarity_op SRCS iou_similarity_op.cc
                     iou_similarity_op_npu.cc)