diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3fafc65..0ffb4e1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,12 +5,14 @@ on:
   pull_request:
 
 jobs:
-  spdx:
+  lint:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v2
       - name: Check SPDX identifiers
-        run: ./scripts/spdx.sh
+        run: ./scripts/lint/spdx.sh
+      - name: Check indentation
+        run: ./scripts/lint/indent.sh
 
   tool:
     strategy:
diff --git a/scripts/lint/indent.sh b/scripts/lint/indent.sh
new file mode 100755
index 0000000..553e79f
--- /dev/null
+++ b/scripts/lint/indent.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-3.0-only
+# Check files do not use tabs for indentation
+
+git ls-files '*.[c\|h\|rs\|sh]' | xargs grep --line-number $'^\s*\t' && exit 1
+exit 0
diff --git a/scripts/spdx.sh b/scripts/lint/spdx.sh
similarity index 100%
rename from scripts/spdx.sh
rename to scripts/lint/spdx.sh