diff --git a/contrib/machine-learning/Decision-Tree.md b/contrib/machine-learning/decision-tree.md
similarity index 99%
rename from contrib/machine-learning/Decision-Tree.md
rename to contrib/machine-learning/decision-tree.md
index 6563a22..8159bcf 100644
--- a/contrib/machine-learning/Decision-Tree.md
+++ b/contrib/machine-learning/decision-tree.md
@@ -254,4 +254,4 @@ The final decision tree classifies instances based on the following rules:
 - If Outlook is Rain and Wind is Weak, PlayTennis is Yes
 - If Outlook is Rain and Wind is Strong, PlayTennis is No
 
-> Note that the calculated entropies and information gains may vary slightly depending on the specific implementation and rounding methods used.
\ No newline at end of file
+> Note that the calculated entropies and information gains may vary slightly depending on the specific implementation and rounding methods used.