diff --git a/crates/ruff/src/message/junit.rs b/crates/ruff/src/message/junit.rs
index 745e6c6f06..acef3344f8 100644
--- a/crates/ruff/src/message/junit.rs
+++ b/crates/ruff/src/message/junit.rs
@@ -19,49 +19,60 @@ impl Emitter for JunitEmitter {
     ) -> anyhow::Result<()> {
         let mut report = Report::new("ruff");
 
-        for (filename, messages) in group_messages_by_filename(messages) {
-            let mut test_suite = TestSuite::new(filename);
+        if messages.is_empty() {
+            let mut test_suite = TestSuite::new("ruff");
             test_suite
                 .extra
                 .insert("package".to_string(), "org.ruff".to_string());
-
-            for message in messages {
-                let MessageWithLocation {
-                    message,
-                    start_location,
-                } = message;
-                let mut status = TestCaseStatus::non_success(NonSuccessKind::Failure);
-                status.set_message(message.kind.body.clone());
-                let location = if context.is_jupyter_notebook(message.filename()) {
-                    // We can't give a reasonable location for the structured formats,
-                    // so we show one that's clearly a fallback
-                    SourceLocation::default()
-                } else {
-                    start_location
-                };
-
-                status.set_description(format!(
-                    "line {row}, col {col}, {body}",
-                    row = location.row,
-                    col = location.column,
-                    body = message.kind.body
-                ));
-                let mut case = TestCase::new(
-                    format!("org.ruff.{}", message.kind.rule().noqa_code()),
-                    status,
-                );
-                let file_path = Path::new(filename);
-                let file_stem = file_path.file_stem().unwrap().to_str().unwrap();
-                let classname = file_path.parent().unwrap().join(file_stem);
-                case.set_classname(classname.to_str().unwrap());
-                case.extra
-                    .insert("line".to_string(), location.row.to_string());
-                case.extra
-                    .insert("column".to_string(), location.column.to_string());
-
-                test_suite.add_test_case(case);
-            }
+            let mut case = TestCase::new("No errors found", TestCaseStatus::success());
+            case.set_classname("ruff");
+            test_suite.add_test_case(case);
             report.add_test_suite(test_suite);
+        } else {
+            for (filename, messages) in group_messages_by_filename(messages) {
+                let mut test_suite = TestSuite::new(filename);
+                test_suite
+                    .extra
+                    .insert("package".to_string(), "org.ruff".to_string());
+
+                for message in messages {
+                    let MessageWithLocation {
+                        message,
+                        start_location,
+                    } = message;
+                    let mut status = TestCaseStatus::non_success(NonSuccessKind::Failure);
+                    status.set_message(message.kind.body.clone());
+                    let location = if context.is_jupyter_notebook(message.filename()) {
+                        // We can't give a reasonable location for the structured formats,
+                        // so we show one that's clearly a fallback
+                        SourceLocation::default()
+                    } else {
+                        start_location
+                    };
+
+                    status.set_description(format!(
+                        "line {row}, col {col}, {body}",
+                        row = location.row,
+                        col = location.column,
+                        body = message.kind.body
+                    ));
+                    let mut case = TestCase::new(
+                        format!("org.ruff.{}", message.kind.rule().noqa_code()),
+                        status,
+                    );
+                    let file_path = Path::new(filename);
+                    let file_stem = file_path.file_stem().unwrap().to_str().unwrap();
+                    let classname = file_path.parent().unwrap().join(file_stem);
+                    case.set_classname(classname.to_str().unwrap());
+                    case.extra
+                        .insert("line".to_string(), location.row.to_string());
+                    case.extra
+                        .insert("column".to_string(), location.column.to_string());
+
+                    test_suite.add_test_case(case);
+                }
+                report.add_test_suite(test_suite);
+            }
         }
 
         report.serialize(writer)?;