diff --git a/.github/workflows/containers.yml b/.github/workflows/containers.yml
index 0d1358a..e13c6cc 100644
--- a/.github/workflows/containers.yml
+++ b/.github/workflows/containers.yml
@@ -402,6 +402,8 @@ jobs:
         run: pager --version && [[ $PAGER = "less" ]] && true || false
       - name: Test ssh
         run: ssh -V
+      - name: Test gdb
+        run: gdb --version
       - name: Stop container
         shell: bash
         run: docker stop candidate
diff --git a/Dockerfile b/Dockerfile
index 70a2788..83a3f96 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -50,6 +50,7 @@ RUN \
   && apt-get -y install --no-install-recommends \
   clang-format \
   g++-multilib \
+  gdb \
   gpg \
   gpg-agent \
   less \