--- a/src/radius.c
+++ b/src/radius.c
@@ -1002,7 +1002,7 @@ int radius_pwencode(struct radius_t *thi
   }
 
   /* Copy first 128 octets of src into dst */
-  if (srclen <= 128) 
+  if (srclen > 128)
     memcpy(dst, src, 128);
   else
     memcpy(dst, src, srclen);