diff --git a/src/coco.c b/src/coco.c
index c95e30d6..b8fc3464 100644
--- a/src/coco.c
+++ b/src/coco.c
@@ -285,6 +285,7 @@ void validate_coco_recall(char *cfgfile, char *weightfile)
         find_replace(labelpath, "JPEGImages", "labels", labelpath);
         find_replace(labelpath, ".jpg", ".txt", labelpath);
         find_replace(labelpath, ".JPEG", ".txt", labelpath);
+		find_replace(labelpath, ".ppm", ".txt", labelpath);
 
         int num_labels = 0;
         box_label *truth = read_boxes(labelpath, &num_labels);
diff --git a/src/data.c b/src/data.c
index 4bb1b0f9..8da12341 100644
--- a/src/data.c
+++ b/src/data.c
@@ -218,6 +218,7 @@ void fill_truth_swag(char *path, float *truth, int classes, int flip, float dx,
     find_replace(labelpath, ".jpg", ".txt", labelpath);
     find_replace(labelpath, ".JPG", ".txt", labelpath);
     find_replace(labelpath, ".JPEG", ".txt", labelpath);
+	find_replace(labelpath, ".ppm", ".txt", labelpath);
 
     int count = 0;
     box_label *boxes = read_boxes(labelpath, &count);
@@ -258,6 +259,7 @@ void fill_truth_region(char *path, float *truth, int classes, int num_boxes, int
     find_replace(labelpath, ".png", ".txt", labelpath);
     find_replace(labelpath, ".JPG", ".txt", labelpath);
     find_replace(labelpath, ".JPEG", ".txt", labelpath);
+	find_replace(labelpath, ".ppm", ".txt", labelpath);
     int count = 0;
     box_label *boxes = read_boxes(labelpath, &count);
     randomize_boxes(boxes, count);
@@ -309,6 +311,7 @@ void fill_truth_detection(char *path, int num_boxes, float *truth, int classes,
 	find_replace(labelpath, ".bmp", ".txt", labelpath);
     find_replace(labelpath, ".JPG", ".txt", labelpath);
     find_replace(labelpath, ".JPEG", ".txt", labelpath);
+	find_replace(labelpath, ".ppm", ".txt", labelpath);
     int count = 0;
 	int i;
     box_label *boxes = read_boxes(labelpath, &count);
diff --git a/src/detector.c b/src/detector.c
index bed7467b..5ccb6c53 100644
--- a/src/detector.c
+++ b/src/detector.c
@@ -479,6 +479,7 @@ void validate_detector_recall(char *datacfg, char *cfgfile, char *weightfile)
 		find_replace(labelpath, ".bmp", ".txt", labelpath);
 		find_replace(labelpath, ".JPG", ".txt", labelpath);
 		find_replace(labelpath, ".JPEG", ".txt", labelpath);
+		find_replace(labelpath, ".ppm", ".txt", labelpath);
 
 		int num_labels = 0;
 		box_label *truth = read_boxes(labelpath, &num_labels);
@@ -636,6 +637,7 @@ void validate_detector_map(char *datacfg, char *cfgfile, char *weightfile, float
 			find_replace(labelpath, ".bmp", ".txt", labelpath);
 			find_replace(labelpath, ".JPG", ".txt", labelpath);
 			find_replace(labelpath, ".JPEG", ".txt", labelpath);
+			find_replace(labelpath, ".ppm", ".txt", labelpath);
 			int num_labels = 0;
 			box_label *truth = read_boxes(labelpath, &num_labels);
 			int i, j;
@@ -899,6 +901,7 @@ void calc_anchors(char *datacfg, int num_of_clusters, int width, int height, int
 		find_replace(labelpath, ".bmp", ".txt", labelpath);
 		find_replace(labelpath, ".JPG", ".txt", labelpath);
 		find_replace(labelpath, ".JPEG", ".txt", labelpath);
+		find_replace(labelpath, ".ppm", ".txt", labelpath);
 		int num_labels = 0;
 		box_label *truth = read_boxes(labelpath, &num_labels);
 		//printf(" new path: %s \n", labelpath);
diff --git a/src/yolo.c b/src/yolo.c
index 238454e6..44811658 100644
--- a/src/yolo.c
+++ b/src/yolo.c
@@ -256,6 +256,7 @@ void validate_yolo_recall(char *cfgfile, char *weightfile)
         find_replace(labelpath, "JPEGImages", "labels", labelpath);
         find_replace(labelpath, ".jpg", ".txt", labelpath);
         find_replace(labelpath, ".JPEG", ".txt", labelpath);
+		find_replace(labelpath, ".ppm", ".txt", labelpath);
 
         int num_labels = 0;
         box_label *truth = read_boxes(labelpath, &num_labels);