diff --git a/paddle/fluid/operators/detection/CMakeLists.txt b/paddle/fluid/operators/detection/CMakeLists.txt
index d3a61dc367c3642b8faa9085a470a302712395e5..cace42bc1bae93287c330e54d12126efbf9a14bb 100644
--- a/paddle/fluid/operators/detection/CMakeLists.txt
+++ b/paddle/fluid/operators/detection/CMakeLists.txt
@@ -31,6 +31,7 @@ detection_library(polygon_box_transform_op SRCS polygon_box_transform_op.cc
 polygon_box_transform_op.cu)
 detection_library(rpn_target_assign_op SRCS rpn_target_assign_op.cc)
 detection_library(generate_proposal_labels_op SRCS generate_proposal_labels_op.cc)
+detection_library(yolov3_loss_op SRCS yolov3_loss_op.cc)
 
 if(WITH_GPU)
   detection_library(generate_proposals_op SRCS generate_proposals_op.cc generate_proposals_op.cu DEPS memory cub)
diff --git a/paddle/fluid/operators/yolov3_loss_op.cc b/paddle/fluid/operators/detection/yolov3_loss_op.cc
similarity index 99%
rename from paddle/fluid/operators/yolov3_loss_op.cc
rename to paddle/fluid/operators/detection/yolov3_loss_op.cc
index 81fd87b4ac143c8490c105c888fe598ed51584ee..2a69ad4b53c26f5e2e0547e75e0d9c6518a8bcba 100644
--- a/paddle/fluid/operators/yolov3_loss_op.cc
+++ b/paddle/fluid/operators/detection/yolov3_loss_op.cc
@@ -9,7 +9,7 @@
    See the License for the specific language governing permissions and
    limitations under the License. */
 
-#include "paddle/fluid/operators/yolov3_loss_op.h"
+#include "paddle/fluid/operators/detection/yolov3_loss_op.h"
 #include "paddle/fluid/framework/op_registry.h"
 
 namespace paddle {
diff --git a/paddle/fluid/operators/yolov3_loss_op.h b/paddle/fluid/operators/detection/yolov3_loss_op.h
similarity index 100%
rename from paddle/fluid/operators/yolov3_loss_op.h
rename to paddle/fluid/operators/detection/yolov3_loss_op.h