diff --git a/notes_tools/tools/marks_plottings.py b/notes_tools/tools/marks_plottings.py
index f82796c..d5ce844 100644
--- a/notes_tools/tools/marks_plottings.py
+++ b/notes_tools/tools/marks_plottings.py
@@ -12,7 +12,7 @@ logger = logging.getLogger(__name__)
 __all__ = ["radar_on", 
         "pie_pivot_table",
         "marks_hist",
-        "parallele_on",
+        "parallel_on",
         ]
 
 def radar_on(df, index, optimum = None):
@@ -67,8 +67,8 @@ def marks_hist(df, **kwargs):
 
     return ax
 
-def parallele_on(df, index, student=None):
-    """ Plot parallele one line by student
+def parallel_on(df, index, student=None):
+    """ Plot parallel one line by student
 
     :param df: TODO
     :param index: TODO