1 files changed, 2 insertions, 2 deletions
diff --git a/apps/rsautl.c b/apps/rsautl.c
index 8ba838b43f..84a1de1ae9 100644
--- a/apps/rsautl.c
+++ b/apps/rsautl.c
@@ -251,10 +251,10 @@ int rsautl_main(int argc, char **argv)
         goto end;
     }
 
-    in = bio_open_default(infile, "rb");
+    in = bio_open_default(infile, 'r', FORMAT_BINARY);
     if (in == NULL)
         goto end;
-    out = bio_open_default(outfile, "wb");
+    out = bio_open_default(outfile, 'w', FORMAT_BINARY);
     if (out == NULL)
         goto end;