diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 87c03d2..1e9250e 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -3,10 +3,10 @@ name: PlatformIO checks and build
 on:
   push:
     paths-ignore:
-      - *.md
+      - '*.md'
   pull_request:
     paths-ignore:
-      - *.md
+      - '*.md'
 
 jobs:
   PlatformIO-Check: