diff --git a/src/nv_infer_server_manager.cpp b/src/nv_infer_server_manager.cpp
index 981810a..620daec 100644
--- a/src/nv_infer_server_manager.cpp
+++ b/src/nv_infer_server_manager.cpp
@@ -307,7 +307,7 @@ GstPadProbeReturn NvInferServerManager::pgie_pad_buffer_probe(
             uint detected_persons = 0;
             float *data = static_cast<float *>(layer.buffer);
             for (unsigned int jkl = 0; jkl < 100;
-                 jkl += 4) {  // 100 persons for each frame
+                 jkl ++) {  // 100 persons for each frame
                 if (data[jkl * 57 + 4] > threshold_body_detection) {
                     detected_persons++;
                     // std::cout