How to insert shortcode which outputs inline text into SiteOrigin Editor

I created a custom (bog standard WordPress) shortcode. All that the associated function does is to echo a single word of text. I want to insert the shortcode into the middle of a paragraph of text which I created in SiteOrigin Editor. The shortcode is obviously being picked up but the word output by it appears in a paragraph of its own above the paragraph that I wanted it to be in. What am I doing wrong?