diff --git a/.travis.yml b/.travis.yml
index 44a864f..8496169 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,7 @@ matrix:
     - python: 3.5
     - python: 3.6
     - python: 3.7
+    - python: 3.8
       dist: xenial
       sudo: true
 
diff --git a/totp_generator/core_utils.py b/totp_generator/core_utils.py
index b401cca..c2b8ea9 100644
--- a/totp_generator/core_utils.py
+++ b/totp_generator/core_utils.py
@@ -109,7 +109,13 @@ def get_services(self):
 
     def get_totp_code(self, service):
         # force six digits
-        code = "%06d" % (onetimepass.get_totp(self.creds[service]['code']))
+        secret = self.creds[service]['code']
+        # this attempts to correct the padding when it is missing
+        # see https://github.com/tadeck/onetimepass/pull/22
+        mod = len(secret) % 8
+        if mod:
+            secret += '=' * (8 - mod)
+        code = "%06d" % (onetimepass.get_totp(secret))
         return code
 
     def import_creds_from_file(self, file_name):