diff --git a/modules/tracker/klt/include/visp3/klt/vpKltOpencv.h b/modules/tracker/klt/include/visp3/klt/vpKltOpencv.h
index d9bde51eeb..7e8085b88f 100644
--- a/modules/tracker/klt/include/visp3/klt/vpKltOpencv.h
+++ b/modules/tracker/klt/include/visp3/klt/vpKltOpencv.h
@@ -54,7 +54,7 @@
 #include <opencv2/video/tracking.hpp>
 
 #if defined(VISP_HAVE_NLOHMANN_JSON)
-#include <nlohmann/json.hpp>
+#include VISP_NLOHMANN_JSON(json.hpp)
 #endif
 
 BEGIN_VISP_NAMESPACE