diff --git a/package-lock.json b/package-lock.json
index 497af859..0660a887 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -33,7 +33,8 @@
         "portfinder": "^1.0.38",
         "prompts": "^2.4.2",
         "semver": "^7.7.2",
-        "terminal-link": "^5.0.0"
+        "terminal-link": "^5.0.0",
+        "zod": "^4.1.11"
       },
       "bin": {
         "juno": "dist/index.js"
@@ -6488,7 +6489,6 @@
       "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.11.tgz",
       "integrity": "sha512-WPsqwxITS2tzx1bzhIKsEs19ABD5vmCVa4xBo2tq/SrV4RNZtfws1EnCWQXM6yh8bD08a1idvkB5MZSBiZsjwg==",
       "license": "MIT",
-      "peer": true,
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
       }
@@ -10428,8 +10428,7 @@
     "zod": {
       "version": "4.1.11",
       "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.11.tgz",
-      "integrity": "sha512-WPsqwxITS2tzx1bzhIKsEs19ABD5vmCVa4xBo2tq/SrV4RNZtfws1EnCWQXM6yh8bD08a1idvkB5MZSBiZsjwg==",
-      "peer": true
+      "integrity": "sha512-WPsqwxITS2tzx1bzhIKsEs19ABD5vmCVa4xBo2tq/SrV4RNZtfws1EnCWQXM6yh8bD08a1idvkB5MZSBiZsjwg=="
     }
   }
 }
diff --git a/package.json b/package.json
index 0bd2b648..c29f0fac 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,8 @@
     "portfinder": "^1.0.38",
     "prompts": "^2.4.2",
     "semver": "^7.7.2",
-    "terminal-link": "^5.0.0"
+    "terminal-link": "^5.0.0",
+    "zod": "^4.1.11"
   },
   "devDependencies": {
     "@eslint/eslintrc": "^3.3.1",
diff --git a/src/configs/emulator.config.ts b/src/configs/emulator.config.ts
index 3e27c440..7c7d77dc 100644
--- a/src/configs/emulator.config.ts
+++ b/src/configs/emulator.config.ts
@@ -1,5 +1,6 @@
 import {type EmulatorConfig, EmulatorConfigSchema} from '@junobuild/config';
 import {red} from 'kleur';
+import * as z from 'zod';
 import {DEPLOY_LOCAL_REPLICA_PATH} from '../constants/dev.constants';
 import {EMULATOR_SKYLAB} from '../constants/emulator.constants';
 import {ENV} from '../env';
@@ -16,11 +17,15 @@ export const readEmulatorConfig = async (): Promise<
 > => {
   const config = await getEmulatorConfig();
 
-  const {success} = EmulatorConfigSchema.safeParse(config);
+  const {success, error} = EmulatorConfigSchema.safeParse(config);
   if (!success) {
     console.log(
       red('Invalid configuration: please check the emulator options of your config file.')
     );
+
+    const prettyError = z.prettifyError(error);
+    console.log(prettyError);
+
     return {success: false};
   }