diff --git a/.changeset/shiny-hornets-relate.md b/.changeset/shiny-hornets-relate.md
new file mode 100644
index 0000000000..a310f37e8c
--- /dev/null
+++ b/.changeset/shiny-hornets-relate.md
@@ -0,0 +1,5 @@
+---
+'@astrojs/underscore-redirects': patch
+---
+
+Fixes the type of `force`
diff --git a/packages/underscore-redirects/src/redirects.ts b/packages/underscore-redirects/src/redirects.ts
index 11ed9085e6..38a70c448c 100644
--- a/packages/underscore-redirects/src/redirects.ts
+++ b/packages/underscore-redirects/src/redirects.ts
@@ -9,7 +9,7 @@ export type RedirectDefinition = {
 	// a priority once inserted.
 	weight: number;
 	status: number;
-	force?: number;
+	force?: boolean;
 };
 
 export class Redirects {