diff --git a/src/parser.c b/src/parser.c
index 68a9f049..8051fd7f 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -813,7 +813,7 @@ void load_weights_upto(network *net, char *filename, int cutoff)
 {
     fprintf(stderr, "Loading weights from %s...", filename);
     fflush(stdout);
-    FILE *fp = fopen(filename, "r");
+    FILE *fp = fopen(filename, "rb");
     if(!fp) file_error(filename);
 
     int major;