diff --git a/src/Elastic.Markdown/Myst/InlineParsers/DiagnosticLinkInlineParser.cs b/src/Elastic.Markdown/Myst/InlineParsers/DiagnosticLinkInlineParser.cs
index a350aa533..e8cdedbbd 100644
--- a/src/Elastic.Markdown/Myst/InlineParsers/DiagnosticLinkInlineParser.cs
+++ b/src/Elastic.Markdown/Myst/InlineParsers/DiagnosticLinkInlineParser.cs
@@ -119,7 +119,7 @@ private bool ValidateBasicUrl(LinkInline link, InlineProcessor processor, string
 	{
 		if (string.IsNullOrEmpty(url))
 		{
-			processor.EmitWarning(link, "Found empty url");
+			processor.EmitError(link, "Found empty url");
 			return false;
 		}
 
diff --git a/tests/authoring/Inline/InlineLinks.fs b/tests/authoring/Inline/InlineLinks.fs
index cb599316c..479e222df 100644
--- a/tests/authoring/Inline/InlineLinks.fs
+++ b/tests/authoring/Inline/InlineLinks.fs
@@ -45,7 +45,7 @@ type ``inline link with mailto not allowed external host`` () =
     let ``has no errors`` () = markdown |> hasNoErrors
 
     [<Fact>]
-    let ``has warning`` () = markdown |> hasWarning "mailto links should be to elastic.co domains."
+    let ``has error`` () = markdown |> hasWarning "mailto links should be to elastic.co domains."
 
 type ``empty link should result in an error`` () =
 
@@ -54,7 +54,7 @@ type ``empty link should result in an error`` () =
 """
 
     [<Fact>]
-    let ``should warn`` () = markdown |> hasWarning "Found empty url"
+    let ``has error`` () = markdown |> hasError "Found empty url"
 
     [<Fact>]
-    let ``has no erros`` () = markdown |> hasNoErrors
+    let ``has no warnings`` () = markdown |> hasNoWarnings