diff --git a/src/caosadvancedtools/models/parser.py b/src/caosadvancedtools/models/parser.py
index 62d444618c5fee94aabc18ef11eae841b6941900..a81855f2e10b5c267dc0915111547bcf2af766fa 100644
--- a/src/caosadvancedtools/models/parser.py
+++ b/src/caosadvancedtools/models/parser.py
@@ -44,7 +44,7 @@ KEYWORDS_IGNORED = [
 
 
 def _get_listdatatype(dtype):
-    """matches a string to check whehter the type definition is a list
+    """matches a string to check whether the type definition is a list
 
     returns the type within the list or None, if it cannot be matched with a
     list definition