diff --git a/projects/PyZpc/pyzfx.cpp b/projects/PyZpc/pyzfx.cpp
index 8804b873d0..fd98b29f14 100644
--- a/projects/PyZpc/pyzfx.cpp
+++ b/projects/PyZpc/pyzfx.cpp
@@ -191,7 +191,7 @@ struct PyZfx : INode {
  
         if (has_input("code")) { // path.empty()
             auto code = get_input2<std::string>("code");
-            auto tmpFile = zs::abs_exe_directory() + "/pyzfx.py";
+            auto tmpFile = zs::abs_exe_directory() + "/__pyzfx__zstmp.py";
             if (std::FILE* f = std::fopen(tmpFile.c_str(), "w")) {
                 std::fwrite(code.data(), sizeof(char), code.size(), f);
                 std::fclose(f);