diff --git a/README.md b/README.md
index c799eee083..70c8a8c2be 100644
--- a/README.md
+++ b/README.md
@@ -133,7 +133,7 @@ litgpt chat \
 
 Specialize an already pretrained model by training on custom data:
 
-```
+```bash
 mkdir -p custom_texts
 curl https://www.gutenberg.org/cache/epub/24440/pg24440.txt --output custom_texts/book1.txt
 curl https://www.gutenberg.org/cache/epub/26393/pg26393.txt --output custom_texts/book2.txt