diff --git a/package.json b/package.json
index 60a5b04..16765cd 100644
--- a/package.json
+++ b/package.json
@@ -53,6 +53,11 @@
       "type": "object",
       "title": "Syntax Tree",
       "properties": {
+        "syntaxTree.printWidth": {
+          "default": 80,
+          "markdownDescription": "The width to be used when formatting code.",
+          "type": "number"
+        },
         "syntaxTree.singleQuotes": {
           "default": false,
           "markdownDescription": "Uses single-quoted strings when possible.",
diff --git a/src/extension.ts b/src/extension.ts
index 1563ac5..4fd7746 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -87,6 +87,9 @@ export async function activate(context: ExtensionContext) {
       args.push(`--plugins=${Array.from(plugins).join(",")}`);
     }
 
+    // Configure print width.
+    args.push(`--print-width=${config.get<number>("printWidth")}`)
+
     // There's a bit of complexity here. Basically, if there's an open folder,
     // then we're going to check if the syntax_tree gem is inside the bundle. If
     // it is, then we'll run bundle exec stree. This is good, because it'll