diff --git a/src/run.py b/src/run.py
index 65ea776..d45bab8 100644
--- a/src/run.py
+++ b/src/run.py
@@ -179,7 +179,7 @@ def ntpserver():
             # Linke Y-Achse
             yaxis=dict(
                 title='Root Dispersion',
-                tick_suffix=' ms'
+                ticksuffix=' ms'
             ),
             
             # Rechte Y-Achse