1 files changed, 2 insertions, 2 deletions
diff --git a/lib/decoding.c b/lib/decoding.c
index 57e7b2b..9cd5a34 100644
--- a/lib/decoding.c
+++ b/lib/decoding.c
@@ -111,8 +111,8 @@ int ret, tot;
     return ret;
   
   tot = ret + *len;
-  
-  if (tot < 0 || tot > der_len)
+
+  if (tot < ret || tot > der_len)
     return -3;
 
   return ret;