diff --git a/src/data.c b/src/data.c
index 1b9117d9..2780a82c 100644
--- a/src/data.c
+++ b/src/data.c
@@ -841,7 +841,8 @@ data load_data_detection(int n, char **paths, int m, int w, int h, int c, int bo
     d.y = make_matrix(n, 5*boxes);
     int i_mixup = 0;
     for (i_mixup = 0; i_mixup <= mixup; i_mixup++) {
-        if (i_mixup) augmentation_calculated = 0;
+        if (i_mixup) augmentation_calculated = 0;   // recalculate augmentation for the 2nd sequence if(track==1)
+
         for (i = 0; i < n; ++i) {
             float *truth = (float*)calloc(5 * boxes, sizeof(float));
             const char *filename = (i_mixup) ? mixup_random_paths[i] : random_paths[i];
diff --git a/src/parser.c b/src/parser.c
index e0962f02..f425560f 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -409,7 +409,7 @@ int *parse_gaussian_yolo_mask(char *a, int *num) // Gaussian_YOLOv3
         for (i = 0; i < len; ++i) {
             if (a[i] == ',') ++n;
         }
-        mask = calloc(n, sizeof(int));
+        mask = (int *)calloc(n, sizeof(int));
         for (i = 0; i < n; ++i) {
             int val = atoi(a);
             mask[i] = val;