diff --git a/pkg/stackit/cfnyaml/cfnyaml.go b/pkg/stackit/cfnyaml/cfnyaml.go
index a302204..8dac6c3 100644
--- a/pkg/stackit/cfnyaml/cfnyaml.go
+++ b/pkg/stackit/cfnyaml/cfnyaml.go
@@ -68,7 +68,7 @@ func (c *CfnYaml) PackageableNodes() ([]PackageableNode, error) {
 
 		if def := packageableDefinition(resType); def != nil {
 			propNode := valueForKey(valueNode, def.Path...)
-			if propNode != nil {
+			if propNode != nil && looksPackageable(propNode, def) {
 				nodes = append(nodes, PackageableNode{
 					Name:  name,
 					Value: propNode.Value,
@@ -86,6 +86,11 @@ func (c *CfnYaml) PackageableNodes() ([]PackageableNode, error) {
 	return nodes, nil
 }
 
+func looksPackageable(n *yaml.Node, def *packageablePropertyDefinition) bool {
+	// TODO: https://github.com/glassechidna/stackit/issues/34
+	return n.Kind == yaml.ScalarNode
+}
+
 func packageableDefinition(typ string) *packageablePropertyDefinition {
 	for _, def := range packageablePropertyDefinitions {
 		if def.ResourceType == typ {
diff --git a/pkg/stackit/cfnyaml/cfnyaml_test.go b/pkg/stackit/cfnyaml/cfnyaml_test.go
index 235070b..6646a33 100644
--- a/pkg/stackit/cfnyaml/cfnyaml_test.go
+++ b/pkg/stackit/cfnyaml/cfnyaml_test.go
@@ -55,6 +55,11 @@ var tests = []tableTestEntry{
 			"./stack.yml": {"bucket", "key.yml", "abc"},
 		},
 	},
+	{
+		Name:         "f",
+		Explanation:  "no-op",
+		Replacements: map[string]rewrittenLocation{},
+	},
 }
 
 func TestCfnYaml_PackageableNodes(t *testing.T) {
diff --git a/pkg/stackit/cfnyaml/testdata/f_expected.yml b/pkg/stackit/cfnyaml/testdata/f_expected.yml
new file mode 100644
index 0000000..b23a49c
--- /dev/null
+++ b/pkg/stackit/cfnyaml/testdata/f_expected.yml
@@ -0,0 +1,14 @@
+Transform: AWS::Serverless-2016-10-31
+Resources:
+  Function:
+    Type: AWS::Serverless::Function
+    Properties:
+      Handler: index.handler
+      Runtime: nodejs8.10
+      MemorySize: 256
+      CodeUri:
+        Bucket: stackit-ap-southeast-2-607481581596
+        Key: func.zip
+        Version: GNz4tYuVVvtLYlE5touSEDnp6keZUIDJ
+      Timeout: 60
+      AutoPublishAlias: live
diff --git a/pkg/stackit/cfnyaml/testdata/f_input.yml b/pkg/stackit/cfnyaml/testdata/f_input.yml
new file mode 100644
index 0000000..b23a49c
--- /dev/null
+++ b/pkg/stackit/cfnyaml/testdata/f_input.yml
@@ -0,0 +1,14 @@
+Transform: AWS::Serverless-2016-10-31
+Resources:
+  Function:
+    Type: AWS::Serverless::Function
+    Properties:
+      Handler: index.handler
+      Runtime: nodejs8.10
+      MemorySize: 256
+      CodeUri:
+        Bucket: stackit-ap-southeast-2-607481581596
+        Key: func.zip
+        Version: GNz4tYuVVvtLYlE5touSEDnp6keZUIDJ
+      Timeout: 60
+      AutoPublishAlias: live