diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3f8eeb2..8fbf7da 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -9,3 +9,11 @@ jobs:
         with:
           submodules: recursive
       - run: scripts/ci-test.sh 
+  check-format:
+    name: Formatted with `make format`
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - run: make check-format
diff --git a/Makefile b/Makefile
index 3bdedf3..f5f45b0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,4 @@
+SHELL = /bin/bash
 .SUFFIXES:
 
 .PHONY: all
@@ -19,6 +20,10 @@ clean:
 format:
 	clang-format --style=file -i src/**.cpp src/**.hpp
 
+.PHONY: check-format
+check-format:
+	diff -u <(cat src/**.cpp src/**.hpp) <(clang-format --style=file src/**.cpp src/**.hpp)
+
 build/client: build/Makefile
 	(cd build; make -j)
 
diff --git a/src/WebVizConstants.hpp b/src/WebVizConstants.hpp
index 558ceb3..d14b361 100644
--- a/src/WebVizConstants.hpp
+++ b/src/WebVizConstants.hpp
@@ -37,7 +37,8 @@ static const std::string odometry_topic = "odometry/raw";
 static const std::string lidar_2d_topic = "velodyne_2dscan";
 
 /**
- * @brief (sensor_msgs/CompressedImage) prefix for a Compressed Image from a stereo camera.
+ * @brief (sensor_msgs/CompressedImage) prefix for a Compressed Image from a
+ * stereo camera.
  */
 static const std::string compressed_image_prefix = "image_compressed/";