diff --git a/openbr/plugins/gallery/vec.cpp b/openbr/plugins/gallery/vec.cpp
index 0226798..40a3b22 100644
--- a/openbr/plugins/gallery/vec.cpp
+++ b/openbr/plugins/gallery/vec.cpp
@@ -1,4 +1,5 @@
 #include <openbr/plugins/openbr_internal.h>
+#include <openbr/core/opencvutils.h>
 
 namespace br
 {
@@ -40,12 +41,16 @@ class vecGallery : public FileGallery
         if (write1 != sizeof(count) || write2 != sizeof(size) || write3 != sizeof(temp) || write4 != sizeof(temp))
             qFatal("Failed to write header.");
 
-        for (int i=0; i<count; i++)
+        for (int i=0; i<count; i++) {
+            uchar tmp = 0;
+            const size_t write5 = f.write((char*)&tmp,sizeof(tmp));
+            Q_UNUSED(write5);
             for (int r = 0; r < height; r++)
                 for (int c = 0; c < width; c++) {
                     short buffer = mats[i].ptr(r)[c];
                     f.write((char*)&buffer, sizeof(buffer));
                 }
+        }
 
         f.close();
     }