Paperclip model validation error message appears two times

Question

I have upload funtionality in rails, am using rails paper clip. I have defined my model validation like this to check image type.

validates_attachment :company_logo, content_type: { content_type: ["image/jpg", "image/jpeg", "image/png", "image/gif"] }

If i upload some other file extensions, its showing two times this message. I want only one message "Company logo content type is invalid"

Company logo content type is invalid
Company logo is invalid

Please tell me solution. Thanks in advance