diff --git a/.changeset/breezy-poets-matter.md b/.changeset/breezy-poets-matter.md
new file mode 100644
index 000000000..f4da41855
--- /dev/null
+++ b/.changeset/breezy-poets-matter.md
@@ -0,0 +1,5 @@
+---
+'@vanilla-extract/rollup-plugin': patch
+---
+
+Include content in CSS sourcemap when bundling with the `extract` option
diff --git a/packages/rollup-plugin/src/index.ts b/packages/rollup-plugin/src/index.ts
index 84764be9c..87b78fe0c 100644
--- a/packages/rollup-plugin/src/index.ts
+++ b/packages/rollup-plugin/src/index.ts
@@ -174,7 +174,9 @@ export function vanillaExtractPlugin({
           type: 'asset',
           name: sourcemapName,
           originalFileName: sourcemapName,
-          source: bundle.generateMap({ file: name }).toString(),
+          source: bundle
+            .generateMap({ file: name, includeContent: true })
+            .toString(),
         });
       }
     },