diff --git a/.env.example b/.env.example
index ab656ae549..019cfef8d6 100644
--- a/.env.example
+++ b/.env.example
@@ -94,7 +94,7 @@ CRON_ENABLE_APP_SYNC=false
 
 # Application Key for symmetric encryption and decryption
 # must be 32 bytes for AES256 encryption algorithm
-# You can use: `openssl rand -base64 24` to generate one
+# You can use: `openssl rand -base64 24` to generate a 32-character key
 CALENDSO_ENCRYPTION_KEY=
 
 # Intercom Config
diff --git a/agents/knowledge-base.md b/agents/knowledge-base.md
index 6b0cb7f592..f3a630f852 100644
--- a/agents/knowledge-base.md
+++ b/agents/knowledge-base.md
@@ -13,7 +13,8 @@ Development
 - Install dependencies: `yarn`
 - Set up environment:
   - Copy `.env.example` to `.env`
-  - Generate keys with `openssl rand -base64 32` for both `NEXTAUTH_SECRET` and `CALENDSO_ENCRYPTION_KEY`
+  - Generate NEXTAUTH_SECRET with `openssl rand -base64 32`
+  - Generate CALENDSO_ENCRYPTION_KEY with `openssl rand -base64 24` (must be 32 characters for AES256)
   - Configure Postgres database URL in `.env`
   - Set DATABASE_DIRECT_URL to the same value as DATABASE_URL