diff --git a/src/rust/slide_types.rs b/src/rust/slide_types.rs
index d413915..476a91c 100644
--- a/src/rust/slide_types.rs
+++ b/src/rust/slide_types.rs
@@ -66,7 +66,9 @@ impl From<SlideType> for String {
             SlideType::Song => "song".to_owned(),
             SlideType::Video => "video".to_owned(),
             SlideType::Image => "image".to_owned(),
-            SlideType::Presentation(_) => "presentation".to_owned(),
+            SlideType::Presentation(PresType::Generic) => "presentation".to_owned(),
+            SlideType::Presentation(PresType::Html) => "html".to_owned(),
+            SlideType::Presentation(PresType::Pdf) => "pdf".to_owned(),
             SlideType::Content => "content".to_owned(),
         }
     }