diff --git a/scripts/build.sh b/scripts/build.sh
index 368c31dc8..c967bf30f 100644
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -5,7 +5,7 @@ set -xe
 [ ! -d "target/artifacts" ] && mkdir -p target/artifacts
 
 for TARGET in $1; do
-  TARGET = $TARGET | tr -d '[:space:]' | tr -d '\n' | tr -d '\r'
+  TARGET=$TARGET | tr -d '[:space:]' | tr -d '\n' | tr -d '\r'
   echo "building for $TARGET"
   rustup target add $TARGET
   cargo build -p clash --target $TARGET --release