diff --git a/config/daemon/systemd.md b/config/daemon/systemd.md
index 3748984f3e..4877bff285 100644
--- a/config/daemon/systemd.md
+++ b/config/daemon/systemd.md
@@ -111,6 +111,16 @@ you need to add this configuration in the Docker systemd service file.
     Environment="HTTP_PROXY=http://proxy.example.com:80"
     Environment="HTTPS_PROXY=https://proxy.example.com:443"
     ```
+        
+    > **Note**
+    >
+    > Special characters in the proxy value, such as `#?!()[]{}`, must be double
+    > escaped using `%%`. For example:
+    > 
+    > ```
+    > [Service]
+    > Environment="HTTP_PROXY=http://domain%%5Cuser:complex%%23pass@proxy.example.com:8080/"
+    > ```
      
 3.  If you have internal Docker registries that you need to contact without
     proxying you can specify them via the `NO_PROXY` environment variable.
@@ -187,6 +197,16 @@ you need to add this configuration in the Docker systemd service file.
     Environment="HTTP_PROXY=http://proxy.example.com:80"
     Environment="HTTPS_PROXY=https://proxy.example.com:443"
     ```
+    
+    > **Note**
+    >
+    > Special characters in the proxy value, such as `#?!()[]{}`, must be double
+    > escaped using `%%`. For example:
+    > 
+    > ```
+    > [Service]
+    > Environment="HTTP_PROXY=http://domain%%5Cuser:complex%%23pass@proxy.example.com:8080/"
+    > ```
      
 3.  If you have internal Docker registries that you need to contact without
     proxying, you can specify them via the `NO_PROXY` environment variable.