diff --git a/contrib/plotting-visualization/index.md b/contrib/plotting-visualization/index.md
index 74558c4..03994ec 100644
--- a/contrib/plotting-visualization/index.md
+++ b/contrib/plotting-visualization/index.md
@@ -1,4 +1,4 @@
 # List of sections
 
 - [Installing Matplotlib](matplotlib_installation.md)
-- [Visualizing NIfTI files](Visualizing_NIfTI_files.md)
+- [Visualizing NIfTI files](Visualizing_nifti_files.md)