diff --git a/sonar-project.properties b/sonar-project.properties
index 832b70c571..025f9e3cd0 100644
--- a/sonar-project.properties
+++ b/sonar-project.properties
@@ -1,2 +1,8 @@
 sonar.projectKey=storytold_artcraft
 sonar.organization=storytold
+
+# CI only publishes the Rust lcov report, so TypeScript and JavaScript never
+# appear covered. Same idea as anicraft excluding JS/PowerShell/Python, and
+# as filmcraft and lightcraft excluding tools/docs/examples.
+sonar.coverage.exclusions=**/*.ts,**/*.tsx,**/*.js,**/*.jsx
+