diff --git a/.cirrus.yml b/.cirrus.yml
deleted file mode 100644
index 77d8202..0000000
--- a/.cirrus.yml
+++ /dev/null
@@ -1,15 +0,0 @@
-task:
-
-  # only test the main branch and pull requests
-  only_if: $CIRRUS_BRANCH == "main" || $CIRRUS_PR != ""
-
-  matrix:
-
-    - name: FreeBSD
-      freebsd_instance:
-        image_family: freebsd-15-0-snap
-      environment:
-        CFLAGS: -Werror -g -fno-omit-frame-pointer -fsanitize=address,undefined -fno-sanitize-recover=undefined
-        UBSAN_OPTIONS: print_stacktrace=1
-      install_script: python3 --version && pkg upgrade -y && pkg install -y cmake py311-pytest vim
-      test_script: uname -sr && env cmake -B build -S . && cmake --build build && cmake --build build --target check && cmake --install build
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0f8c77a..d681488 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,6 +5,35 @@ on:
     branches:
       - main
 jobs:
+  freebsd13:
+    name: FreeBSD
+    runs-on: ubuntu-24.04
+    steps:
+    - uses: vmactions/freebsd-vm@7ca82f79fe3078fecded6d3a2bff094995447bbd
+      with:
+        sync: no
+        release: "15.0"
+        usesh: true
+        run: |
+          set -e
+          set -o pipefail
+          set -u
+          set -x
+          uname -rms
+          pkg install -y cmake git python3 py311-pytest vim
+          python3 --version
+          git clone --no-checkout -- ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} wd
+          cd wd
+          git fetch -- origin ${{ github.event.pull_request.head.sha }}
+          git checkout FETCH_HEAD
+          export CFLAGS="-Werror -g -fno-omit-frame-pointer -fsanitize=address,undefined -fno-sanitize-recover=address,undefined"
+          export UBSAN_OPTIONS=print_stacktrace=1
+          export TERM=xterm
+          cmake -B build -S .
+          cmake --build build
+          cmake --build build --target check
+          cmake --install build
+
   linux:
     name: Linux
     runs-on: ubuntu-24.04
diff --git a/libvimcat/src/read.c b/libvimcat/src/read.c
index 2e3cccc..d364ec9 100644
--- a/libvimcat/src/read.c
+++ b/libvimcat/src/read.c
@@ -239,7 +239,7 @@ static int run_vim(FILE **out, pid_t *pid, const char *filename, size_t rows,
                                                      STDERR_FILENO))))
       goto done;
   } else {
-    DEBUG("leading Vim’s stderr not redirected");
+    DEBUG("leaving Vim’s stderr not redirected");
   }
 
   // construct Vim parameter to force terminal height