diff --git a/book/src/testnet-participation.md b/book/src/testnet-participation.md
index 9b833d8f27..b96509708b 100644
--- a/book/src/testnet-participation.md
+++ b/book/src/testnet-participation.md
@@ -122,8 +122,11 @@ $ ./scripts/cargo-install-all.sh .
 $ export PATH=$PWD/bin:$PATH
 ```
 
-If building for CUDA, include the `cuda` feature flag as well:
+If building for CUDA (Linux only), fetch the perf-libs first then include the
+`cuda` feature flag when building:
 ```bash
+$ ./fetch-perf-libs.sh
+$ source /home/mvines/ws/solana/target/perf-libs/env.sh
 $ ./scripts/cargo-install-all.sh . cuda
 $ export PATH=$PWD/bin:$PATH
 ```