diff --git a/changelog/pending/20221109--pkg--panic-in-codegen-obj-expressions.yaml b/changelog/pending/20221109--pkg--panic-in-codegen-obj-expressions.yaml
new file mode 100644
index 000000000000..777d9c80eed8
--- /dev/null
+++ b/changelog/pending/20221109--pkg--panic-in-codegen-obj-expressions.yaml
@@ -0,0 +1,4 @@
+changes:
+- type: fix
+  scope: pkg
+  description: Fix a panic in codegen for an edge case involving object expressions without corresponding function arguments.
diff --git a/pkg/codegen/pcl/invoke.go b/pkg/codegen/pcl/invoke.go
index cb7af2d5e4ce..0e0e0cd644bd 100644
--- a/pkg/codegen/pcl/invoke.go
+++ b/pkg/codegen/pcl/invoke.go
@@ -150,7 +150,9 @@ func (b *binder) bindInvokeSignature(args []model.Expression) (model.StaticFunct
 
 	// annotate the input args on the expression with the input type of the function
 	if argsObject, isObjectExpression := args[1].(*model.ObjectConsExpression); isObjectExpression {
-		annotateObjectProperties(argsObject.Type(), fn.Inputs)
+		if fn.Inputs != nil {
+			annotateObjectProperties(argsObject.Type(), fn.Inputs)
+		}
 	}
 
 	return sig, nil