1 files changed, 4 insertions, 0 deletions
diff --git a/cli/build.rs b/cli/build.rs
index 4865cadb5..d87021a6d 100644
--- a/cli/build.rs
+++ b/cli/build.rs
@@ -130,6 +130,10 @@ mod ts {
         path_dts.join(format!("lib.{}.d.ts", name)).display()
       );
     }
+    println!(
+      "cargo:rerun-if-changed={}",
+      cwd.join("js").join("40_testing.js").display()
+    );
 
     // create a copy of the vector that includes any op crate libs to be passed
     // to the JavaScript compiler to build into the snapshot