diff --git a/taichi/backends/wasm/codegen_wasm.cpp b/taichi/backends/wasm/codegen_wasm.cpp
index 0c6fc344d9eb1b..3140048c51fbad 100644
--- a/taichi/backends/wasm/codegen_wasm.cpp
+++ b/taichi/backends/wasm/codegen_wasm.cpp
@@ -104,7 +104,7 @@ class CodeGenLLVMWASM : public CodeGenLLVM {
     int pos = kernel_name.length() - 1;
     int underline_count = 0;
     int redundant_count = 3;
-    // see python/taichi/lang/kernel_impl.py, line 360
+    // https://github.com/taichi-dev/taichi/blob/026321f906d37b633bffaf8af787e895f2dceb2b/python/taichi/lang/kernel_impl.py#L360-L362
     for (; pos >= 0; --pos) {
       if (kernel_name.at(pos) == '_') {
         underline_count += 1;