2 files changed, 4 insertions, 4 deletions
diff --git a/README.md b/README.md
index 4aaca34..01b9148 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,9 @@ command line, or install rebar yourself.
 In order to perform merge operations, the following software packages
 are needed: python-ecdsa, python-yaml.
 
+In order to use the tools for submitting certificates, the following
+software package is needed: python-pyasn1.
+
 # Compile
 
     $ make
diff --git a/tools/submitcert.py b/tools/submitcert.py
index 663dd50..3b14912 100755
--- a/tools/submitcert.py
+++ b/tools/submitcert.py
@@ -14,10 +14,7 @@ import hashlib
 import itertools
 from certtools import *
 from certtools import *
-try:
-    from precerttools import *
-except ImportError:
-    pass
+from precerttools import *
 import os
 import signal
 import select