diff --git a/src/detector.c b/src/detector.c
index 2b54a4af..de4bc90c 100644
--- a/src/detector.c
+++ b/src/detector.c
@@ -21,10 +21,10 @@
 
 #ifndef CV_VERSION_EPOCH
 #include "opencv2/videoio/videoio_c.h"
-#define OPENCV_VERSION CVAUX_STR(CV_VERSION_MAJOR)""CVAUX_STR(CV_VERSION_MINOR)""CVAUX_STR(CV_VERSION_REVISION)
+#define OPENCV_VERSION CVAUX_STR(CV_VERSION_MAJOR)"" CVAUX_STR(CV_VERSION_MINOR)"" CVAUX_STR(CV_VERSION_REVISION)
 #pragma comment(lib, "opencv_world" OPENCV_VERSION ".lib")
 #else
-#define OPENCV_VERSION CVAUX_STR(CV_VERSION_EPOCH)""CVAUX_STR(CV_VERSION_MAJOR)""CVAUX_STR(CV_VERSION_MINOR)
+#define OPENCV_VERSION CVAUX_STR(CV_VERSION_EPOCH)"" CVAUX_STR(CV_VERSION_MAJOR)"" CVAUX_STR(CV_VERSION_MINOR)
 #pragma comment(lib, "opencv_core" OPENCV_VERSION ".lib")
 #pragma comment(lib, "opencv_imgproc" OPENCV_VERSION ".lib")
 #pragma comment(lib, "opencv_highgui" OPENCV_VERSION ".lib")
diff --git a/src/yolo_console_dll.cpp b/src/yolo_console_dll.cpp
index ea4330e3..2eca2678 100644
--- a/src/yolo_console_dll.cpp
+++ b/src/yolo_console_dll.cpp
@@ -28,7 +28,7 @@
 #include "opencv2/core/version.hpp"
 #ifndef CV_VERSION_EPOCH
 #include "opencv2/videoio/videoio.hpp"
-#define OPENCV_VERSION CVAUX_STR(CV_VERSION_MAJOR)""CVAUX_STR(CV_VERSION_MINOR)""CVAUX_STR(CV_VERSION_REVISION)
+#define OPENCV_VERSION CVAUX_STR(CV_VERSION_MAJOR)"" CVAUX_STR(CV_VERSION_MINOR)"" CVAUX_STR(CV_VERSION_REVISION)
 #pragma comment(lib, "opencv_world" OPENCV_VERSION ".lib")
 #ifdef TRACK_OPTFLOW
 #pragma comment(lib, "opencv_cudaoptflow" OPENCV_VERSION ".lib")