diff --git a/core/src/main/java/org/lsposed/lspd/util/LspModuleClassLoader.java b/core/src/main/java/org/lsposed/lspd/util/LspModuleClassLoader.java
index 3d8e0697..1b22d640 100644
--- a/core/src/main/java/org/lsposed/lspd/util/LspModuleClassLoader.java
+++ b/core/src/main/java/org/lsposed/lspd/util/LspModuleClassLoader.java
@@ -171,7 +171,7 @@ public final class LspModuleClassLoader extends ByteBufferDexClassLoader {
     public String toString() {
         return "LspModuleClassLoader[" +
                 "module=" + apk + "," +
-                "nativeLibraryDirs=" + Arrays.toString(nativeLibraryDirs.toArray()) + "," +
+                "nativeLibraryDirs=" + nativeLibraryDirs == null ? "null" : Arrays.toString(nativeLibraryDirs.toArray()) + "," +
                 super.toString() + "]";
     }