diff --git a/devcmd.c b/devcmd.c
index 58d81dc..f032b1f 100644
--- a/devcmd.c
+++ b/devcmd.c
@@ -496,7 +496,7 @@ static int do_cmd_prog(char **arg, int prog_flags)
 	if (prompt_abort(MODIFY_SYMS))
 		return 0;
 
-	in = fopen(*arg, "r");
+	in = fopen(*arg, "rb");
 	if (!in) {
 		printc_err("prog: %s: %s\n", *arg, last_error());
 		return -1;
diff --git a/sym.c b/sym.c
index 50e19da..cf13998 100644
--- a/sym.c
+++ b/sym.c
@@ -56,7 +56,7 @@ static int cmd_sym_load_add(int clear, char **arg)
 	if (clear && prompt_abort(MODIFY_SYMS))
 		return 0;
 
-	in = fopen(*arg, "r");
+	in = fopen(*arg, "rb");
 	if (!in) {
 		printc_err("sym: %s: %s\n", *arg, last_error());
 		return -1;