diff --git a/board/c6 b/board/c6.yaml
similarity index 100%
rename from board/c6
rename to board/c6.yaml
diff --git a/board/s3mb16 b/board/s3mb16.yaml
similarity index 100%
rename from board/s3mb16
rename to board/s3mb16.yaml
diff --git a/board/s3mb4 b/board/s3mb4.yaml
similarity index 100%
rename from board/s3mb4
rename to board/s3mb4.yaml