diff --git a/net/goai/goai_path.go b/net/goai/goai_path.go
index 2de4fca39..3602927ed 100644
--- a/net/goai/goai_path.go
+++ b/net/goai/goai_path.go
@@ -311,6 +311,12 @@ func (oai *OpenApiV3) removeOperationDuplicatedProperties(operation Operation) {
 	}
 
 	for _, requestBodyContent := range operation.RequestBody.Value.Content {
+
+		// Check request body schema
+		if requestBodyContent.Schema == nil {
+			continue
+		}
+
 		// Check request body schema ref.
 		if schema := oai.Components.Schemas.Get(requestBodyContent.Schema.Ref); schema != nil {
 			schema.Value.Required = oai.removeItemsFromArray(schema.Value.Required, duplicatedParameterNames)