diff --git a/.github/workflows/spellcheck.yml b/.github/workflows/spellcheck.yml
new file mode 100644
index 0000000000..3595ef4f3c
--- /dev/null
+++ b/.github/workflows/spellcheck.yml
@@ -0,0 +1,18 @@
+# Copyright (C) The libssh2 project and its contributors.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+name: "spellcheck"
+on: [push, pull_request]
+
+permissions: {}
+
+jobs:
+  spellcheck:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: 'install tools'
+        run: pip3 install -U codespell
+      - name: 'run spellcheck'
+        run: ./ci/spellcheck.sh
diff --git a/.reuse/dep5 b/.reuse/dep5
index a2cc768eea..f9894aac5a 100644
--- a/.reuse/dep5
+++ b/.reuse/dep5
@@ -4,7 +4,7 @@ Upstream-Contact: The libssh2 team <libssh2-devel@lists.haxx.se>
 Source: https://libssh2.org/
 
 # Test data
-Files: tests/openssh_server/* tests/ossfuzz/* tests/key_* tests/test_read_algos.txt
+Files: tests/openssh_server/* tests/ossfuzz/* tests/key_* tests/test_read_algos.txt ci/spellcheck-words.txt
 Copyright: The libssh2 project and its contributors.
 License: BSD-3-Clause
 
diff --git a/ci/spellcheck-words.txt b/ci/spellcheck-words.txt
new file mode 100644
index 0000000000..2f39b28074
--- /dev/null
+++ b/ci/spellcheck-words.txt
@@ -0,0 +1,3 @@
+gord
+pase
+nam
diff --git a/ci/spellcheck.sh b/ci/spellcheck.sh
new file mode 100755
index 0000000000..c95e758997
--- /dev/null
+++ b/ci/spellcheck.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+# Copyright (C) The libssh2 project and its contributors.
+# SPDX-License-Identifier: BSD-3-Clause
+
+set -e
+
+cd "$(dirname "$0")/.."
+
+# shellcheck disable=SC2046
+codespell --skip='docs/AUTHORS' --check-hidden \
+  --ignore-words='ci/spellcheck-words.txt' \
+  $(git ls-files)
diff --git a/src/os400qc3.c b/src/os400qc3.c
index af12f0839b..1dca259462 100644
--- a/src/os400qc3.c
+++ b/src/os400qc3.c
@@ -635,11 +635,11 @@ static asn1Element *
 asn1_new_from_bytes(const unsigned char *data, unsigned int length)
 {
     asn1Element *e;
-    asn1Element te;
+    asn1Element et;
 
-    getASN1Element(&te,
+    getASN1Element(&et,
                    (unsigned char *) data, (unsigned char *) data + length);
-    e = asn1_new(te.tag, te.end - te.beg);
+    e = asn1_new(et.tag, et.end - et.beg);
 
     if(e)
         memcpy(e->header, data, e->end - e->header);