diff --git a/src/configuration/builder.rs b/src/configuration/builder.rs
index 81b0275..f0e5ad6 100644
--- a/src/configuration/builder.rs
+++ b/src/configuration/builder.rs
@@ -49,6 +49,10 @@ impl ConfigurationBuilder {
     self.insert("lineWidth", (value as i32).into())
   }
 
+  pub fn indent_width(&mut self, value: u32) -> &mut Self {
+    self.insert("indentWidth", (value as i32).into())
+  }
+
   /// The kind of newline to use.
   /// Default: `NewLineKind::LineFeed`
   pub fn new_line_kind(&mut self, value: NewLineKind) -> &mut Self {
@@ -136,6 +140,7 @@ mod tests {
     config
       .new_line_kind(NewLineKind::CarriageReturnLineFeed)
       .line_width(90)
+      .indent_width(2)
       .text_wrap(TextWrap::Always)
       .emphasis_kind(EmphasisKind::Asterisks)
       .strong_kind(StrongKind::Underscores)
@@ -146,7 +151,7 @@ mod tests {
       .ignore_end_directive("test");
 
     let inner_config = config.get_inner_config();
-    assert_eq!(inner_config.len(), 10);
+    assert_eq!(inner_config.len(), 11);
     let diagnostics = resolve_config(inner_config, &Default::default()).diagnostics;
     assert_eq!(diagnostics.len(), 0);
   }
@@ -161,6 +166,7 @@ mod tests {
     let mut config_builder = ConfigurationBuilder::new();
     let config = config_builder.global_config(global_config).build();
     assert_eq!(config.line_width, 90);
+    assert_eq!(config.indent_width, 2);
     assert_eq!(config.new_line_kind == NewLineKind::CarriageReturnLineFeed, true);
   }
 
@@ -170,6 +176,7 @@ mod tests {
     let mut config_builder = ConfigurationBuilder::new();
     let config = config_builder.global_config(global_config).build();
     assert_eq!(config.line_width, 80); // this is different
+    assert_eq!(config.indent_width, 2);
     assert_eq!(config.new_line_kind == NewLineKind::LineFeed, true);
   }
 }
diff --git a/src/configuration/resolve_config.rs b/src/configuration/resolve_config.rs
index 6d7fd79..241d058 100644
--- a/src/configuration/resolve_config.rs
+++ b/src/configuration/resolve_config.rs
@@ -43,6 +43,12 @@ pub fn resolve_config(
       global_config.line_width.unwrap_or(80),
       &mut diagnostics,
     ),
+    indent_width: get_value(
+      &mut config,
+      "indentWidth",
+      global_config.indent_width.unwrap_or(2).into(),
+      &mut diagnostics,
+    ),
     new_line_kind: get_value(
       &mut config,
       "newLineKind",
diff --git a/src/configuration/types.rs b/src/configuration/types.rs
index 76d1afe..8a64be1 100644
--- a/src/configuration/types.rs
+++ b/src/configuration/types.rs
@@ -8,6 +8,7 @@ use serde::Serialize;
 #[serde(rename_all = "camelCase")]
 pub struct Configuration {
   pub line_width: u32,
+  pub indent_width: u32,
   pub new_line_kind: NewLineKind,
   pub text_wrap: TextWrap,
   pub emphasis_kind: EmphasisKind,