diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3c07e878f02..bdcd132c7a3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 * Show paths to config files when configuration errors occur
 
+* `jj fix` now supports configuring the default revset for `-s` using the
+  `revsets.fix` config.
+
 ### Fixed bugs
 
 ## [0.18.0] - 2024-06-05
diff --git a/cli/src/commands/fix.rs b/cli/src/commands/fix.rs
index 6112e0ef87e..7e31a3ebf13 100644
--- a/cli/src/commands/fix.rs
+++ b/cli/src/commands/fix.rs
@@ -65,7 +65,9 @@ use crate::ui::Ui;
 #[derive(clap::Args, Clone, Debug)]
 #[command(verbatim_doc_comment)]
 pub(crate) struct FixArgs {
-    /// Fix files in the specified revision(s) and their descendants
+    /// Fix files in the specified revision(s) and their descendants. If no
+    /// revisions are specified, this defaults to the `revsets.fix` setting, or
+    /// `@` if it is not set.
     #[arg(long, short)]
     source: Vec<RevisionArg>,
     /// Fix only these paths
@@ -80,14 +82,14 @@ pub(crate) fn cmd_fix(
     args: &FixArgs,
 ) -> Result<(), CommandError> {
     let mut workspace_command = command.workspace_helper(ui)?;
-    let root_commits: Vec<CommitId> = workspace_command
-        .parse_union_revsets(if args.source.is_empty() {
-            &[RevisionArg::AT]
-        } else {
-            &args.source
-        })?
-        .evaluate_to_commit_ids()?
-        .collect();
+    let root_commits: Vec<CommitId> = if args.source.is_empty() {
+        workspace_command
+            .parse_revset(&RevisionArg::from(command.settings().default_fix_revset()))?
+    } else {
+        workspace_command.parse_union_revsets(&args.source)?
+    }
+    .evaluate_to_commit_ids()?
+    .collect();
     workspace_command.check_rewritable(root_commits.iter())?;
     let matcher = workspace_command
         .parse_file_patterns(&args.paths)?
diff --git a/cli/src/config-schema.json b/cli/src/config-schema.json
index d9267ac88c3..95df0038988 100644
--- a/cli/src/config-schema.json
+++ b/cli/src/config-schema.json
@@ -346,6 +346,11 @@
             "type": "object",
             "description": "Revset expressions used by various commands",
             "properties": {
+                "fix": {
+                    "type": "string",
+                    "description": "Default set of revisions to fix when no explicit revset is given for jj fix",
+                    "default": "@"
+                },
                 "log": {
                     "type": "string",
                     "description": "Default set of revisions to show when no explicit revset is given for jj log and similar commands",
diff --git a/cli/src/config/revsets.toml b/cli/src/config/revsets.toml
index 60517d3ffb5..776ae15cb02 100644
--- a/cli/src/config/revsets.toml
+++ b/cli/src/config/revsets.toml
@@ -2,6 +2,7 @@
 # adding/updating any of these aliases
 
 [revsets]
+fix = "@"
 log = "@ | ancestors(immutable_heads().., 2) | trunk()"
 
 [revset-aliases]
diff --git a/cli/tests/cli-reference@.md.snap b/cli/tests/cli-reference@.md.snap
index 8b074b21e18..7454d797ecf 100644
--- a/cli/tests/cli-reference@.md.snap
+++ b/cli/tests/cli-reference@.md.snap
@@ -798,7 +798,7 @@ And then run the command `jj fix -s @`.
 
 ###### **Options:**
 
-* `-s`, `--source <SOURCE>` — Fix files in the specified revision(s) and their descendants
+* `-s`, `--source <SOURCE>` — Fix files in the specified revision(s) and their descendants. If no revisions are specified, this defaults to the `revsets.fix` setting, or `@` if it is not set
 
 
 
diff --git a/cli/tests/test_fix_command.rs b/cli/tests/test_fix_command.rs
index 2db3e696c37..2e66ed884c6 100644
--- a/cli/tests/test_fix_command.rs
+++ b/cli/tests/test_fix_command.rs
@@ -139,6 +139,61 @@ fn test_fix_sibling_commit() {
     insta::assert_snapshot!(content, @"child2");
 }
 
+#[test]
+fn test_default_revset() {
+    let (test_env, repo_path) = init_with_fake_formatter(&["--uppercase"]);
+    std::fs::write(repo_path.join("file"), "foo").unwrap();
+    test_env.jj_cmd_ok(&repo_path, &["branch", "create", "foo"]);
+    test_env.jj_cmd_ok(&repo_path, &["new"]);
+    std::fs::write(repo_path.join("file"), "bar").unwrap();
+    test_env.jj_cmd_ok(&repo_path, &["branch", "create", "bar"]);
+    test_env.jj_cmd_ok(&repo_path, &["new", "foo"]);
+    std::fs::write(repo_path.join("file"), "baz").unwrap();
+    test_env.jj_cmd_ok(&repo_path, &["branch", "create", "baz"]);
+
+    // With no args and no revset configuration, we fix `@`.
+    let (stdout, stderr) = test_env.jj_cmd_ok(&repo_path, &["fix"]);
+    insta::assert_snapshot!(stdout, @"");
+    insta::assert_snapshot!(stderr, @r###"
+    Fixed 1 commits of 1 checked.
+    Working copy now at: mzvwutvl 5205c5f1 baz | (no description set)
+    Parent commit      : qpvuntsm 34af74d0 foo | (no description set)
+    Added 0 files, modified 1 files, removed 0 files
+    "###);
+    let content = test_env.jj_cmd_success(&repo_path, &["print", "file", "-r", "foo"]);
+    insta::assert_snapshot!(content, @"foo");
+    let content = test_env.jj_cmd_success(&repo_path, &["print", "file", "-r", "bar"]);
+    insta::assert_snapshot!(content, @"bar");
+    let content = test_env.jj_cmd_success(&repo_path, &["print", "file", "-r", "baz"]);
+    insta::assert_snapshot!(content, @"BAZ");
+}
+
+#[test]
+fn test_custom_default_revset() {
+    let (test_env, repo_path) = init_with_fake_formatter(&["--uppercase"]);
+
+    std::fs::write(repo_path.join("file"), "foo").unwrap();
+    test_env.jj_cmd_ok(&repo_path, &["branch", "create", "foo"]);
+    test_env.jj_cmd_ok(&repo_path, &["new"]);
+    std::fs::write(repo_path.join("file"), "bar").unwrap();
+    test_env.jj_cmd_ok(&repo_path, &["branch", "create", "bar"]);
+
+    // Check out a different commit so that the schema default `@` would behave
+    // differently from our customized default.
+    test_env.jj_cmd_ok(&repo_path, &["new", "-r", "foo"]);
+    test_env.add_config(r#"revsets.fix = "bar""#);
+
+    let (stdout, stderr) = test_env.jj_cmd_ok(&repo_path, &["fix"]);
+    insta::assert_snapshot!(stdout, @"");
+    insta::assert_snapshot!(stderr, @r###"
+    Fixed 1 commits of 1 checked.
+    "###);
+    let content = test_env.jj_cmd_success(&repo_path, &["print", "file", "-r", "foo"]);
+    insta::assert_snapshot!(content, @"foo");
+    let content = test_env.jj_cmd_success(&repo_path, &["print", "file", "-r", "bar"]);
+    insta::assert_snapshot!(content, @"BAR");
+}
+
 #[test]
 fn test_fix_immutable_commit() {
     let (test_env, repo_path) = init_with_fake_formatter(&["--uppercase"]);
diff --git a/lib/src/settings.rs b/lib/src/settings.rs
index 8497ced2a6a..89c5a75c699 100644
--- a/lib/src/settings.rs
+++ b/lib/src/settings.rs
@@ -208,6 +208,10 @@ impl UserSettings {
         self.config.get_string("revsets.log").unwrap_or_default()
     }
 
+    pub fn default_fix_revset(&self) -> String {
+        self.config.get_string("revsets.fix").unwrap_or_default()
+    }
+
     pub fn signature(&self) -> Signature {
         let timestamp = self.timestamp.clone().unwrap_or_else(Timestamp::now);
         Signature {