diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index c666e8a..098851d 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -22,6 +22,16 @@ jobs:
       - uses: actions/setup-python@v4
         with:
           python-version: '3.10'
+      - uses: docker/setup-buildx-action@v2
+      - name: Build and cache syntest
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          file: ./tests/docker/syntest.dockerfile
+          tags: syntest
+          cache-from: type=gha,scope=main
+          cache-to: type=gha,scope=main,mode=max
+          load: true
       - name: Run syntax tests
         run: tests/syntax.py
 
diff --git a/tests/syntax.py b/tests/syntax.py
index fca1836..e842e62 100755
--- a/tests/syntax.py
+++ b/tests/syntax.py
@@ -47,7 +47,7 @@
         f"docker build -t {image_tag} - < {dockerfile_path}",
         shell=True
     )
-    print("\033[34m" + "Docker build ends here." + "\033[00m")
+    print("\033[34m" + f"Docker image successfully built, tagged '{image_tag}'." + "\033[00m")
 
 man_syntax_path = Path('../syntaxes/Manpage.sublime-syntax')
 if not man_syntax_path.is_file():