diff --git a/packages/cli/src/lib/tasks.ts b/packages/cli/src/lib/tasks.ts
index e32bb7fbce..f16022ee97 100644
--- a/packages/cli/src/lib/tasks.ts
+++ b/packages/cli/src/lib/tasks.ts
@@ -194,6 +194,11 @@ export async function installWithLocalDeps(dir: string) {
           delete depJson['main:src'];
           depJson.types = 'dist/index.d.ts';
 
+          // Ugly hack until backend packages can point straight to source
+          if (name === 'config' || name === 'config-loader') {
+            depJson.main = 'dist/index.cjs.js';
+          }
+
           await fs
             .writeJSON(depJsonPath, depJson, { encoding: 'utf8', spaces: 2 })
             .catch(error => {
diff --git a/packages/config-loader/package.json b/packages/config-loader/package.json
index afa1ac3ea2..9f403af7e8 100644
--- a/packages/config-loader/package.json
+++ b/packages/config-loader/package.json
@@ -16,11 +16,10 @@
     "backstage"
   ],
   "license": "Apache-2.0",
-  "main": "dist/index.esm.js",
-  "main:src": "src/index.ts",
+  "main": "src/index.ts",
   "types": "src/index.ts",
   "scripts": {
-    "build": "backstage-cli plugin:build",
+    "build": "backstage-cli build",
     "lint": "backstage-cli lint",
     "test": "backstage-cli test",
     "prepack": "backstage-cli prepack",
diff --git a/packages/config/package.json b/packages/config/package.json
index 9371988ddd..244fbe5799 100644
--- a/packages/config/package.json
+++ b/packages/config/package.json
@@ -16,11 +16,10 @@
     "backstage"
   ],
   "license": "Apache-2.0",
-  "main": "dist/index.esm.js",
-  "main:src": "src/index.ts",
+  "main": "src/index.ts",
   "types": "src/index.ts",
   "scripts": {
-    "build": "backstage-cli plugin:build",
+    "build": "backstage-cli build",
     "lint": "backstage-cli lint",
     "test": "backstage-cli test",
     "prepack": "backstage-cli prepack",