diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d469281..a23cb8c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -114,13 +114,13 @@ jobs:
 
   c_format:
     name: C format
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-26.04
     steps:
       - run: uname -rms
       - run: echo "cloning ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}"
       - run: git clone --no-checkout -- ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} wd
       - run: cd wd && git fetch -- origin ${{ github.event.pull_request.head.sha }} && git checkout FETCH_HEAD
-      - run: cd wd && git ls-files -z '**/*.c' '**/*.h' | xargs -0 -- clang-format-15 --dry-run --style=file --Werror
+      - run: cd wd && git ls-files -z '**/*.c' '**/*.h' | xargs -0 -- clang-format-22 --dry-run --style=file --Werror
 
   c_analysis:
     name: C analysis
diff --git a/libvimcat/src/term.c b/libvimcat/src/term.c
index 1257554..d37485b 100644
--- a/libvimcat/src/term.c
+++ b/libvimcat/src/term.c
@@ -628,8 +628,7 @@ static int process_csi(term_t *t, const char *csi) {
 #endif
 
   // check we have a known CSI
-  int (*handler)(term_t * t, size_t index, bool is_default, size_t entry) =
-      NULL;
+  int (*handler)(term_t *t, size_t index, bool is_default, size_t entry) = NULL;
   switch (final) {
   case 'A': // Cursor Up
     handler = process_A;