diff --git a/.github/workflows/cargo.yml b/.github/workflows/cargo.yml
index ca234fc3..bb422d05 100644
--- a/.github/workflows/cargo.yml
+++ b/.github/workflows/cargo.yml
@@ -1,6 +1,9 @@
 on:
   pull_request:
     branches: [master]
+    paths:
+      - wasm-mappings/**
+      - .github/workflows/cargo.yml
   push:
     branches: [master]
   workflow_dispatch:
diff --git a/.prettierignore b/.prettierignore
index 98b24dcb..d1666d98 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -2,3 +2,4 @@
 bench/
 coverage/
 node_modules/
+target/