diff --git a/contrib/machine-learning/index.md b/contrib/machine-learning/index.md
index ea8b5cb..988a27f 100644
--- a/contrib/machine-learning/index.md
+++ b/contrib/machine-learning/index.md
@@ -9,4 +9,4 @@
 - [TensorFlow.md](tensorFlow.md)
 - [PyTorch.md](pytorch.md)
 - [Types of optimizers](Types_of_optimizers.md)
-- [Introduction To Convolutional Neural Networks (CNNs)](IntroToCNNs.md)
+- [Introduction To Convolutional Neural Networks (CNNs)](intro-to-cnn.md)