diff --git a/doc/deployment_guide/configure_your_machine/physical_server.md b/doc/deployment_guide/configure_your_machine/physical_server.md
index 11ff097699572dc05847f8bf48630e6729a193a4..907027fab71f7e1313881c609c71e97d9d1745a4 100644
--- a/doc/deployment_guide/configure_your_machine/physical_server.md
+++ b/doc/deployment_guide/configure_your_machine/physical_server.md
@@ -2,19 +2,19 @@ This page describes how to configure a physical server for running ETSI TeraFlow
 
 # Server Specifications
 
-### Minimum Server Specifications for development and basic deployment
+#### Minimum Server Specifications for development and basic deployment
 - CPU: 4 cores
 - RAM: 8 GB
 - Disk: 60 GB
 - 1 GbE NIC
 
-### Recommended Server Specifications for development and basic deployment
+#### Recommended Server Specifications for development and basic deployment
 - CPU: 6 cores
 - RAM: 12 GB
 - Disk: 80 GB
 - 1 GbE NIC
 
-### Server Specifications for best development and deployment experience
+#### Server Specifications for best development and deployment experience
 - CPU: 8 cores
 - RAM: 32 GB
 - Disk: 120 GB