diff --git a/packages/astro/src/compiler/transform/head.ts b/packages/astro/src/compiler/transform/head.ts
index 58b14c451..bafe3e341 100644
--- a/packages/astro/src/compiler/transform/head.ts
+++ b/packages/astro/src/compiler/transform/head.ts
@@ -58,26 +58,27 @@ export default function (opts: TransformOptions): Transformer {
 
       if (isHmrEnabled) {
         const { hmrPort } = opts.compileOptions;
-        children.push({
-              type: 'Element',
-              name: 'script',
-              attributes: [],
-              children: [
-                { type: 'Text', data: `window.HMR_WEBSOCKET_URL = 'ws://localhost:${hmrPort}'`, start: 0, end: 0 }
-              ],
-              start: 0,
-              end: 0
-            }, {
-              type: 'Element',
-              name: 'script',
-              attributes: [
-                { type: 'Attribute', name: 'type', value: [{ type: 'Text', data: 'module', start: 0, end: 0 }], start: 0, end: 0 },
-                { type: 'Attribute', name: 'src', value: [{ type: 'Text', data: '/_snowpack/hmr-client.js', start: 0, end: 0 }], start: 0, end: 0 },
-              ],
-              children: [],
-              start: 0,
-              end: 0
-            })
+        children.push(
+          {
+            type: 'Element',
+            name: 'script',
+            attributes: [],
+            children: [{ type: 'Text', data: `window.HMR_WEBSOCKET_URL = 'ws://localhost:${hmrPort}'`, start: 0, end: 0 }],
+            start: 0,
+            end: 0,
+          },
+          {
+            type: 'Element',
+            name: 'script',
+            attributes: [
+              { type: 'Attribute', name: 'type', value: [{ type: 'Text', data: 'module', start: 0, end: 0 }], start: 0, end: 0 },
+              { type: 'Attribute', name: 'src', value: [{ type: 'Text', data: '/_snowpack/hmr-client.js', start: 0, end: 0 }], start: 0, end: 0 },
+            ],
+            children: [],
+            start: 0,
+            end: 0,
+          }
+        );
       }
       head.children = head.children ?? [];
       head.children.push(...children);
diff --git a/packages/astro/src/runtime.ts b/packages/astro/src/runtime.ts
index 1acf1685e..b350da596 100644
--- a/packages/astro/src/runtime.ts
+++ b/packages/astro/src/runtime.ts
@@ -264,7 +264,7 @@ interface CreateSnowpackOptions {
   env: Record<string, any>;
   mode: RuntimeMode;
   resolvePackageUrl?: (pkgName: string) => Promise<string>;
-  target: 'frontend'|'backend';
+  target: 'frontend' | 'backend';
 }
 
 const DEFAULT_HMR_PORT = 12321;
@@ -284,11 +284,11 @@ async function createSnowpack(astroConfig: AstroConfig, options: CreateSnowpackO
     resolvePackageUrl?: (s: string) => Promise<string>;
     renderers?: { name: string; client: string; server: string }[];
     astroConfig: AstroConfig;
-    hmrPort?: number
+    hmrPort?: number;
   } = {
     astroConfig,
     resolvePackageUrl,
-    hmrPort: isHmrEnabled ? DEFAULT_HMR_PORT : undefined
+    hmrPort: isHmrEnabled ? DEFAULT_HMR_PORT : undefined,
   };
 
   const mountOptions = {