diff --git a/src/embed.h b/src/embed.h
index 29342d3..6fdfd19 100644
--- a/src/embed.h
+++ b/src/embed.h
@@ -96,7 +96,7 @@ FORCE_INLINE std::string extract_embeded_file() {
 }
 
 static void remove_extract_dir() {
-    auto extract_dir = getenv("SSC_EXTRACT_DIR");
+    auto extract_dir = getenv(OBF("SSC_EXTRACT_DIR"));
     auto tmp_dir = tmpdir();
     if (extract_dir && !strncmp(extract_dir, tmp_dir, strlen(tmp_dir))) {
         LOGD("remove extract dir. path=%s", extract_dir);