diff --git a/examples/scripts/tu_delft_wing_design.py b/examples/scripts/tu_delft_wing_design.py
index 4cd7a029a2f282e0ea1351609178c04ab672f366..3d58ff0cbd2561b555d4c03b364f48e5853988d9 100644
--- a/examples/scripts/tu_delft_wing_design.py
+++ b/examples/scripts/tu_delft_wing_design.py
@@ -86,7 +86,7 @@ else:
 
 print 'Scripting RCG...'
 # Remove bad precision values
-# TODO: fix this in the knowlegde base
+# TODO: fix this in the knowledge base
 nodes = RCG.find_all_nodes()
 for node in nodes:
     if isinstance(RCG.node[node].get('precision'), basestring):