diff --git a/rudof_lib/src/convert.rs b/rudof_lib/src/convert.rs
index 2beaefa3..4b7b395b 100644
--- a/rudof_lib/src/convert.rs
+++ b/rudof_lib/src/convert.rs
@@ -154,7 +154,7 @@ impl Display for OutputConvertFormat {
             OutputConvertFormat::ShExC => write!(dest, "shexc"),
             OutputConvertFormat::ShExJ => write!(dest, "shexj"),
             OutputConvertFormat::Turtle => write!(dest, "turtle"),
-            OutputConvertFormat::PlantUML => write!(dest, "uml"),
+            OutputConvertFormat::PlantUML => write!(dest, "plantuml"),
             OutputConvertFormat::Html => write!(dest, "html"),
             OutputConvertFormat::Png => write!(dest, "png"),
             OutputConvertFormat::Svg => write!(dest, "svg"),
@@ -173,7 +173,7 @@ impl FromStr for OutputConvertFormat {
             "shexc" => Ok(OutputConvertFormat::ShExC),
             "shexj" => Ok(OutputConvertFormat::ShExJ),
             "turtle" => Ok(OutputConvertFormat::Turtle),
-            "uml" => Ok(OutputConvertFormat::PlantUML),
+            "plantuml" => Ok(OutputConvertFormat::PlantUML),
             "html" => Ok(OutputConvertFormat::Html),
             "svg" => Ok(OutputConvertFormat::Svg),
             "png" => Ok(OutputConvertFormat::Png),