diff --git a/boards/pro_micro_rp2040/README.md b/boards/pro_micro_rp2040/README.md
index dde25cf..a9809ef 100644
--- a/boards/pro_micro_rp2040/README.md
+++ b/boards/pro_micro_rp2040/README.md
@@ -53,7 +53,7 @@ If you get an error about not being able to find `elf2uf2-rs`, try:
 $ cargo install elf2uf2-rs, then repeating the `cargo run` command above.
 ```
 
-### [rainbow](./examples/rainbow.rs)
+### [Rainbow](./examples/pro_micro_rainbow.rs)
 
 This example will display a colour-wheel rainbow effect on the on-board LED.
 
diff --git a/boards/pro_micro_rp2040/examples/rainbow.rs b/boards/pro_micro_rp2040/examples/pro_micro_rainbow.rs
similarity index 100%
rename from boards/pro_micro_rp2040/examples/rainbow.rs
rename to boards/pro_micro_rp2040/examples/pro_micro_rainbow.rs