diff --git a/README.md b/README.md
index 33b86f0..e413383 100644
--- a/README.md
+++ b/README.md
@@ -31,8 +31,8 @@ CONTROLLER="tasoller_v1"  # replace with your preferred controller backend
 # For CHUNITHM NEW (SDHD)
 cargo build --target i686-pc-windows-msvc --release --features chusan,$CONTROLLER
 cargo build --target x86_64-pc-windows-msvc --release --features chusan,$CONTROLLER
-cp target/i686-pc-windows-msvc/release/chuniio_rs.dll chuniio_$CONTROLLER_chusan.dll
-cp target/x86_64-pc-windows-msvc/release/chuniio_rs.dll chuniio_$CONTROLLER_amdaemon.dll
+cp target/i686-pc-windows-msvc/release/chuniio_rs.dll chuniio_${CONTROLLER}_chusan.dll
+cp target/x86_64-pc-windows-msvc/release/chuniio_rs.dll chuniio_${CONTROLLER}_amdaemon.dll
 
 # For CHUNITHM (SDBT)
 cargo build --target i686-pc-windows-msvc --release --features $CONTROLLER