diff --git a/README.md b/README.md
index 3776602..955ce93 100644
--- a/README.md
+++ b/README.md
@@ -58,7 +58,7 @@ Parameter / Env var | Optional | Default value | Description
 `network_mode: host` | no | / | The container’s network stack is not isolated from the Docker host. This is necessary to send WOL packages from a container. The port of the webserver is configured via `APACHE2_PORT`.
 `APACHE2_PORT` | yes | 8080 | Port of the webinterface.
 `PASSPHRASE` | yes | admin | Password of the webinterface. If no password is specified, you don't need a password to wake a PC.
-`RWSOLS_COMPUTER_NAME` | no | / | Displaynames for the computers (**array**)
+`RWSOLS_COMPUTER_NAME` | no | / | Displaynames for the computers (**array**)<br>(**No spaces supported.** Please use hyphens or underscores)
 `RWSOLS_COMPUTER_MAC` | no | / | MAC addresses for the computers (**array**)
 `RWSOLS_COMPUTER_IP` | no | / | IP addresses for the computers (**array**)
 `RWSOLS_SLEEP_PORT` | yes | 7760 | This is the Port being used by the Windows SleepOnLan Utility to initiate a Sleep State (**not necessary for WOL**)
@@ -74,11 +74,11 @@ To configure the computers, we will use these three environment variables:
 
 Let's say we want to wake 2 computers with the following configurations:
 1. PC1
-   - Displayname: PC of Mark
+   - Displayname: PC-of-Mark
    - MAC address: 24:00:dd:5a:21:04
    - IP address: 192.168.1.146
 2. PC2
-   - Displayname: PC of John
+   - Displayname: PC-of-John
    - MAC address: 59:3c:45:3c:30:f6
    - IP address: 192.168.1.177
 
@@ -88,8 +88,8 @@ To configure the env vars it's easier to arrange them in a **vertical** table:
 ><table>
 >  <tr>
 >    <th><code>RWSOLS_COMPUTER_NAME</code></th>
->    <td>PC of Mark</td>
->    <td>PC of John</td>
+>    <td>PC-of-Mark</td>
+>    <td>PC-of-John</td>
 >  </tr>
 >  <tr>
 >    <th><code>RWSOLS_COMPUTER_MAC</code></th>
@@ -107,7 +107,7 @@ To configure the env vars it's easier to arrange them in a **vertical** table:
 
 Now you just format the table in an array:
 >```
->      - RWSOLS_COMPUTER_NAME="PC of Mark","PC of John"
+>      - RWSOLS_COMPUTER_NAME="PC-of-Mark","PC-of-John"
 >      - RWSOLS_COMPUTER_MAC="24:00:dd:5a:21:04","59:3c:45:3c:30:f6"
 >      - RWSOLS_COMPUTER_IP="192.168.1.146","192.168.1.177"
 >```