diff --git a/radicle-surf/src/diff.rs b/radicle-surf/src/diff.rs
index d688a6e..f8fe509 100644
--- a/radicle-surf/src/diff.rs
+++ b/radicle-surf/src/diff.rs
@@ -17,7 +17,7 @@
 
 //! Types that represent diff(s) in a Git repo.
 
-use std::{borrow::Cow, path::PathBuf, string::FromUtf8Error};
+use std::{borrow::Cow, ops::Range, path::PathBuf, string::FromUtf8Error};
 
 #[cfg(feature = "serde")]
 use serde::{ser, ser::SerializeStruct, Serialize, Serializer};
@@ -358,6 +358,10 @@ pub struct Stats {
 pub struct Hunk<T> {
     pub header: Line,
     pub lines: Vec<T>,
+    /// Old line range.
+    pub old: Range<u32>,
+    /// New line range.
+    pub new: Range<u32>,
 }
 
 /// A set of [`Hunk`] changes.
diff --git a/radicle-surf/src/diff/git.rs b/radicle-surf/src/diff/git.rs
index 57a3315..b3f61e0 100644
--- a/radicle-surf/src/diff/git.rs
+++ b/radicle-surf/src/diff/git.rs
@@ -179,7 +179,12 @@ impl TryFrom<git2::Patch<'_>> for DiffContent {
                 let line = Modification::try_from(line)?;
                 lines.push(line);
             }
-            hunks.push(Hunk { header, lines });
+            hunks.push(Hunk {
+                header,
+                lines,
+                old: hunk.old_start()..hunk.old_start() + hunk.old_lines(),
+                new: hunk.new_start()..hunk.new_start() + hunk.new_lines(),
+            });
         }
         let eof = match (old_missing_eof, new_missing_eof) {
             (true, true) => EofNewLine::BothMissing,
diff --git a/radicle-surf/t/src/diff.rs b/radicle-surf/t/src/diff.rs
index c5c9963..4b53f22 100644
--- a/radicle-surf/t/src/diff.rs
+++ b/radicle-surf/t/src/diff.rs
@@ -44,6 +44,8 @@ fn test_initial_diff() -> Result<(), Error> {
                         .to_vec(),
                     1,
                 )],
+                old: 0..0,
+                new: 1..2,
             }]
             .into(),
             eof: EofNewLine::default(),
@@ -93,6 +95,8 @@ fn test_diff_file() -> Result<(), Error> {
                     Modification::addition(b"This repository is a data source for the Upstream front-end tests and the\n".to_vec(), 1),
                     Modification::addition(b"[`radicle-surf`](https://github.com/radicle-dev/git-platinum) unit tests.\n".to_vec(), 2),
                 ],
+                old: 1..2,
+                new: 1..3,
             }]
             .into(),
             eof: EofNewLine::default(),
@@ -129,6 +133,8 @@ fn test_diff() -> Result<(), Error> {
                     Modification::addition(b"This repository is a data source for the Upstream front-end tests and the\n".to_vec(), 1),
                     Modification::addition(b"[`radicle-surf`](https://github.com/radicle-dev/git-platinum) unit tests.\n".to_vec(), 2),
                 ],
+                old: 1..2,
+                new: 1..3,
             }]
             .into(),
             eof: EofNewLine::default(),
@@ -228,7 +234,9 @@ fn test_diff_serde() -> Result<(), Error> {
                         "line": "\n",
                         "lineNo": 2,
                         "type": "addition",
-                    }]
+                    }],
+                    "old": { "start": 0, "end": 0 },
+                    "new": { "start": 1, "end": 3 },
                 }],
                 "eof": "noneMissing",
             },
@@ -248,42 +256,44 @@ fn test_diff_serde() -> Result<(), Error> {
                 "hunks": [{
                     "header": "@@ -1,7 +0,0 @@\n",
                     "lines": [
-                    {
-                        "line": "  ;;;;;        ;;;;;        ;;;;;\n",
-                        "lineNo": 1,
-                        "type": "deletion",
-                    },
-                    {
-                        "line": "  ;;;;;        ;;;;;        ;;;;;\n",
-                        "lineNo": 2,
-                        "type": "deletion",
-                    },
-                    {
-                        "line": "  ;;;;;        ;;;;;        ;;;;;\n",
-                        "lineNo": 3,
-                        "type": "deletion",
-                    },
-                    {
-                        "line": "  ;;;;;        ;;;;;        ;;;;;\n",
-                        "lineNo": 4,
-                        "type": "deletion",
-                    },
-                    {
-                        "line": "..;;;;;..    ..;;;;;..    ..;;;;;..\n",
-                        "lineNo": 5,
-                        "type": "deletion",
-                    },
-                    {
-                        "line": " ':::::'      ':::::'      ':::::'\n",
-                        "lineNo": 6,
-                        "type": "deletion",
-                    },
-                    {
-                        "line": "   ':`          ':`          ':`\n",
-                        "lineNo": 7,
-                        "type": "deletion",
-                    },
-                    ]
+                        {
+                            "line": "  ;;;;;        ;;;;;        ;;;;;\n",
+                            "lineNo": 1,
+                            "type": "deletion",
+                        },
+                        {
+                            "line": "  ;;;;;        ;;;;;        ;;;;;\n",
+                            "lineNo": 2,
+                            "type": "deletion",
+                        },
+                        {
+                            "line": "  ;;;;;        ;;;;;        ;;;;;\n",
+                            "lineNo": 3,
+                            "type": "deletion",
+                        },
+                        {
+                            "line": "  ;;;;;        ;;;;;        ;;;;;\n",
+                            "lineNo": 4,
+                            "type": "deletion",
+                        },
+                        {
+                            "line": "..;;;;;..    ..;;;;;..    ..;;;;;..\n",
+                            "lineNo": 5,
+                            "type": "deletion",
+                        },
+                        {
+                            "line": " ':::::'      ':::::'      ':::::'\n",
+                            "lineNo": 6,
+                            "type": "deletion",
+                        },
+                        {
+                            "line": "   ':`          ':`          ':`\n",
+                            "lineNo": 7,
+                            "type": "deletion",
+                        },
+                    ],
+                    "old": { "start": 1, "end": 8 },
+                    "new": { "start": 0, "end": 0 },
                 }],
                 "eof": "noneMissing",
             },
@@ -316,7 +326,9 @@ fn test_diff_serde() -> Result<(), Error> {
                           "line": "[`radicle-surf`](https://github.com/radicle-dev/radicle-surf) unit tests.\n",
                           "type": "addition"
                         },
-                    ]
+                    ],
+                    "old": { "start": 1, "end": 3 },
+                    "new": { "start": 1, "end": 3 },
                 }],
                 "eof": "noneMissing",
             },