diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 0ef8cab..6c74766 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -1,5 +1,4 @@
 name: CI
-
 on:
   push:
     branches:
@@ -7,10 +6,21 @@ on:
   pull_request:
     branches:
       - master
-
 jobs:
+  clang-format:
+    name: Check clang-format
+    runs-on: ubuntu-latest
+    container: archlinux:latest
+    steps:
+      - name: Install dependencies
+        run: |
+          pacman -Syu --noconfirm git clang diffutils
+          git config --global --add safe.directory $GITHUB_WORKSPACE
+      - uses: actions/checkout@v4
+      - uses: fcitx/github-actions@clang-format
   check:
     name: Build and test
+    needs: clang-format
     runs-on: ubuntu-latest
     container: archlinux:latest
     strategy:
diff --git a/src/imclient.c b/src/imclient.c
index 35cc76b..5a15154 100644
--- a/src/imclient.c
+++ b/src/imclient.c
@@ -1486,12 +1486,14 @@ bool xcb_xim_unset_ic_focus(xcb_xim_t *im, xcb_xic_t ic) {
     return !fail;
 }
 
-bool xcb_xim_forward_event(xcb_xim_t *im, xcb_xic_t ic, xcb_key_press_event_t *event) {
-    return xcb_xim_forward_event_full(im, ic, (im->event_sequence >> 16), event);
+bool xcb_xim_forward_event(xcb_xim_t *im, xcb_xic_t ic,
+                           xcb_key_press_event_t *event) {
+    return xcb_xim_forward_event_full(im, ic, (im->event_sequence >> 16),
+                                      event);
 }
 
 bool xcb_xim_forward_event_full(xcb_xim_t *im, xcb_xic_t ic, uint16_t sequence,
-                           xcb_key_press_event_t *event) {
+                                xcb_key_press_event_t *event) {
     xcb_xim_request_queue_t *queue =
         _xcb_xim_new_request(im, XCB_XIM_FORWARD_EVENT, 0, NULL, NULL);
     if (!queue) {