diff --git a/examples/default/resources/Makefile b/examples/default/resources/Makefile
index d4d1dc0..f5e6afd 100644
--- a/examples/default/resources/Makefile
+++ b/examples/default/resources/Makefile
@@ -1,2 +1,5 @@
 run:
 	crossplane render xr.yaml composition.yaml functions.yaml -r
+
+run-in-docker:
+	crossplane render xr.yaml composition.yaml functions.yaml -r
diff --git a/examples/default/resources/functions-docker.yaml b/examples/default/resources/functions-docker.yaml
new file mode 100644
index 0000000..fba129a
--- /dev/null
+++ b/examples/default/resources/functions-docker.yaml
@@ -0,0 +1,6 @@
+apiVersion: pkg.crossplane.io/v1beta1
+kind: Function
+metadata:
+  name: kcl-function
+spec:
+  package: xpkg.upbound.io/crossplane-contrib/function-kcl:latest
diff --git a/scripts/e2e.sh b/scripts/e2e.sh
index 3f66575..6507a46 100755
--- a/scripts/e2e.sh
+++ b/scripts/e2e.sh
@@ -8,6 +8,12 @@ find examples -type f -name "Makefile" -exec sh -c '
     make
 ' \;
 
+find examples -type f -name "Makefile" -exec sh -c '
+    dir="{}"
+    cd "$(dirname "$dir")" || exit
+    make run-in-docker
+' \;
+
 find examples_kcl -type f -name "Makefile" -exec sh -c '
     dir="{}"
     cd "$(dirname "$dir")" || exit