diff --git a/crates/ruff/src/message/azure.rs b/crates/ruff/src/message/azure.rs
index f29a89ce9c..2f2fd019db 100644
--- a/crates/ruff/src/message/azure.rs
+++ b/crates/ruff/src/message/azure.rs
@@ -1,6 +1,6 @@
 use crate::message::{Emitter, EmitterContext, Message};
 use crate::registry::AsRule;
-use ruff_python_ast::source_code::{OneIndexed, SourceLocation};
+use ruff_python_ast::source_code::SourceLocation;
 use std::io::Write;
 
 /// Generate error logging commands for Azure Pipelines format.
@@ -19,10 +19,7 @@ impl Emitter for AzureEmitter {
             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 {
-                    row: OneIndexed::from_zero_indexed(0),
-                    column: OneIndexed::from_zero_indexed(0),
-                }
+                SourceLocation::default()
             } else {
                 message.compute_start_location()
             };
diff --git a/crates/ruff/src/message/github.rs b/crates/ruff/src/message/github.rs
index 5b3552473d..ad7b064f27 100644
--- a/crates/ruff/src/message/github.rs
+++ b/crates/ruff/src/message/github.rs
@@ -1,7 +1,7 @@
 use crate::fs::relativize_path;
 use crate::message::{Emitter, EmitterContext, Message};
 use crate::registry::AsRule;
-use ruff_python_ast::source_code::{OneIndexed, SourceLocation};
+use ruff_python_ast::source_code::SourceLocation;
 use std::io::Write;
 
 /// Generate error workflow command in GitHub Actions format.
@@ -21,10 +21,7 @@ impl Emitter for GithubEmitter {
             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 {
-                    row: OneIndexed::from_zero_indexed(0),
-                    column: OneIndexed::from_zero_indexed(0),
-                }
+                SourceLocation::default()
             } else {
                 source_location.clone()
             };
diff --git a/crates/ruff/src/message/junit.rs b/crates/ruff/src/message/junit.rs
index 2ed8e6dd7f..745e6c6f06 100644
--- a/crates/ruff/src/message/junit.rs
+++ b/crates/ruff/src/message/junit.rs
@@ -3,7 +3,7 @@ use crate::message::{
 };
 use crate::registry::AsRule;
 use quick_junit::{NonSuccessKind, Report, TestCase, TestCaseStatus, TestSuite};
-use ruff_python_ast::source_code::{OneIndexed, SourceLocation};
+use ruff_python_ast::source_code::SourceLocation;
 use std::io::Write;
 use std::path::Path;
 
@@ -35,10 +35,7 @@ impl Emitter for JunitEmitter {
                 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 {
-                        row: OneIndexed::from_zero_indexed(0),
-                        column: OneIndexed::from_zero_indexed(0),
-                    }
+                    SourceLocation::default()
                 } else {
                     start_location
                 };
diff --git a/crates/ruff_python_ast/src/source_code/mod.rs b/crates/ruff_python_ast/src/source_code/mod.rs
index 591162f491..3a33274137 100644
--- a/crates/ruff_python_ast/src/source_code/mod.rs
+++ b/crates/ruff_python_ast/src/source_code/mod.rs
@@ -225,6 +225,15 @@ pub struct SourceLocation {
     pub column: OneIndexed,
 }
 
+impl Default for SourceLocation {
+    fn default() -> Self {
+        Self {
+            row: OneIndexed::MIN,
+            column: OneIndexed::MIN,
+        }
+    }
+}
+
 impl Debug for SourceLocation {
     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
         f.debug_struct("SourceLocation")