diff --git a/src/SPC/util/SPCTarget.php b/src/SPC/util/SPCTarget.php
index fac548aa..d4164ceb 100644
--- a/src/SPC/util/SPCTarget.php
+++ b/src/SPC/util/SPCTarget.php
@@ -5,7 +5,6 @@ declare(strict_types=1);
 namespace SPC\util;
 
 use SPC\builder\linux\SystemUtil;
-use SPC\exception\WrongUsageException;
 use SPC\toolchain\ClangNativeToolchain;
 use SPC\toolchain\GccNativeToolchain;
 use SPC\toolchain\MuslToolchain;
@@ -17,7 +16,7 @@ use SPC\toolchain\ToolchainManager;
  */
 class SPCTarget
 {
-    const array LIBC_LIST = ['musl', 'glibc'];
+    public const array LIBC_LIST = ['musl', 'glibc'];
 
     /**
      * Returns whether we link the C runtime in statically.
diff --git a/tests/SPC/util/SPCTargetTest.php b/tests/SPC/util/SPCTargetTest.php
index f14f0e6c..05d95e08 100644
--- a/tests/SPC/util/SPCTargetTest.php
+++ b/tests/SPC/util/SPCTargetTest.php
@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace SPC\Tests\util;
 
-use SPC\exception\WrongUsageException;
 use SPC\util\SPCTarget;
 
 /**