diff --git a/prepare-env.sh b/prepare-env.sh
index 57b321d..c348faa 100755
--- a/prepare-env.sh
+++ b/prepare-env.sh
@@ -6,18 +6,18 @@ apt-get update
 PACKAGES=(git cmake)
 case "${TARGET}" in
     aarch64-unknown-linux-gnu|aarch64-unknown-linux-musl)
-        apt-get install -y "${PACKAGES}" {cpp,g++,gcc}-aarch64-linux-gnu
+        apt-get install -y "${PACKAGES[@]}" {cpp,g++,gcc}-aarch64-linux-gnu
     ;;
     arm-unknown-linux-gnueabi|arm-unknown-linux-musleabi)
-        apt-get install -y "${PACKAGES}" {cpp,g++,gcc}-arm-linux-gnueabi
+        apt-get install -y "${PACKAGES[@]}" {cpp,g++,gcc}-arm-linux-gnueabi
     ;;
     arm-unknown-linux-gnueabihf|arm-unknown-linux-musleabihf)
-        apt-get install -y "${PACKAGES}" {cpp,g++,gcc}-arm-linux-gnueabihf
+        apt-get install -y "${PACKAGES[@]}" {cpp,g++,gcc}-arm-linux-gnueabihf
     ;;
     armv7-unknown-linux-gnueabihf|armv7-unknown-linux-musleabihf)
-        apt-get install -y "${PACKAGES}" {cpp,g++,gcc}-arm-linux-gnueabihf
+        apt-get install -y "${PACKAGES[@]}" {cpp,g++,gcc}-arm-linux-gnueabihf
     ;;
     *)
-        apt-get install -y "${PACKAGES}"
+        apt-get install -y "${PACKAGES[@]}"
     ;;
 esac
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