diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6cf152503b5b6f97b319b23197660d63137d9a48..7bb0cc59700172b87d2c824b06c553b00355c832 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased] ##
 
 ### Added ###
-- function in administration that generates passwords that comply with the 
+- function in administration that generates passwords that comply with the
   rules
 
 ### Changed ###
diff --git a/src/caosdb/common/administration.py b/src/caosdb/common/administration.py
index 450f8de1c422f7453bb6abfd4d9e94c0bd6ef73e..f47403a682549dceb95ed7f2d67a6097f0e664f3 100644
--- a/src/caosdb/common/administration.py
+++ b/src/caosdb/common/administration.py
@@ -111,7 +111,7 @@ def get_server_property(key):
     return get_server_properties()[key]
 
 
-def get_password(length):
+def get_password(length: int):
     """ creates a random password that fulfills the security requirements """
     sample_letters = string.ascii_letters + string.digits + "!#$%*+-/:;?_"
     password = ''.join((random.choice(sample_letters) for i in range(length)))