diff --git a/snowpack/src/commands/build.ts b/snowpack/src/commands/build.ts
index e1acc9b112..a832b65c11 100644
--- a/snowpack/src/commands/build.ts
+++ b/snowpack/src/commands/build.ts
@@ -145,7 +145,9 @@ class FileBuilder {
     this.filesToResolve = {};
     const isSSR = this.config.experiments.ssr;
     const srcExt = path.extname(url.fileURLToPath(this.fileURL));
-    const fileOutput = this.mountEntry.static
+    // Workaround: HMR plugins need to add scripts to HTML file, even if static.
+    // TODO: Remove once no longer needed in dev.
+    const fileOutput = (this.mountEntry.static && srcExt !== '.html')
       ? {[srcExt]: {code: await readFile(this.fileURL)}}
       : await buildFile(this.fileURL, {
           plugins: this.config.plugins,
diff --git a/snowpack/src/commands/dev.ts b/snowpack/src/commands/dev.ts
index 440cca03cb..24bc9842e5 100644
--- a/snowpack/src/commands/dev.ts
+++ b/snowpack/src/commands/dev.ts
@@ -877,7 +877,10 @@ export async function startDevServer(commandOptions: CommandOptions): Promise<Sn
       return finalResponse;
     }
 
-    const {fileLoc, isStatic, isResolve} = foundFile;
+    const {fileLoc, isStatic: _isStatic, isResolve} = foundFile;
+    // Workaround: HMR plugins need to add scripts to HTML file, even if static.
+    // TODO: Once plugins are able to add virtual files + imports, this will no longer be needed.
+    const isStatic = _isStatic && !fileLoc.endsWith('.html');
 
     // 1. Check the hot build cache. If it's already found, then just serve it.
     let hotCachedResponse: SnowpackBuildMap | undefined = inMemoryBuildCache.get(