diff --git a/lsplt/src/main/jni/lsplt.cc b/lsplt/src/main/jni/lsplt.cc
index 9a1b3ec..83fede5 100644
--- a/lsplt/src/main/jni/lsplt.cc
+++ b/lsplt/src/main/jni/lsplt.cc
@@ -164,9 +164,11 @@ public:
                 info.hooks.clear();
                 continue;
             }
+            mprotect(reinterpret_cast<void *>(info.start), len, PROT_WRITE);
             for (auto &[addr, backup] : info.hooks) {
                 *reinterpret_cast<uintptr_t *>(addr) = backup;
             }
+            mprotect(reinterpret_cast<void *>(info.start), len, info.perm);
             info.hooks.clear();
             info.backup = 0;
         }