diff --git a/.gitignore b/.gitignore
index 460258fdee7d..7a9a181d7ca2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,7 +3,7 @@
 /scripts/release/node_modules
 *.log
 /errors
-/test.*
+/test*.*
 /.vscode
 /dist
 /website/node_modules
diff --git a/tsconfig.json b/tsconfig.json
index ccfd00e92035..15feff23bd0b 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -10,6 +10,7 @@
     "strict": false
   },
   "exclude": [
+    "coverage/",
     // [TBD] JavaScript sources *not* affected by src/language-*:
     "src/main/ast-to-doc.js",
     "src/main/core.js",