diff --git a/CHANGELOG.md b/CHANGELOG.md
index bd936509c..06f8e4102 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ### Removed
 ### Fixed
 - Amended Test, if the ssh elevate credential is different from the ssh credential [#1586](https://github.com/greenbone/gvmd/pull/1586)
+- Added the missing GMP documentation for the ssh elevate credential [#1591](https://github.com/greenbone/gvmd/pull/1591)
 
 [Unreleased]: https://github.com/greenbone/gvmd/compare/v21.4.1...gvmd-21.04
 
diff --git a/src/schema_formats/XML/GMP.xml.in b/src/schema_formats/XML/GMP.xml.in
index 9a3da9a53..7764beca9 100644
--- a/src/schema_formats/XML/GMP.xml.in
+++ b/src/schema_formats/XML/GMP.xml.in
@@ -5168,6 +5168,11 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
         If the list of hosts is empty, the command must also include a
         target locator.
       </p>
+      <p>
+        If the SSH elevate credential is set, the SSH credential must
+        also be set. The SSH elevate credential and the SSH credential
+        must differ.
+      </p>
     </description>
     <pattern>
       <e>name</e>
@@ -5179,6 +5184,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
       </or>
       <o><e>exclude_hosts</e></o>
       <o><e>ssh_credential</e></o>
+      <o><e>ssh_elevate_credential</e></o>
       <o><e>smb_credential</e></o>
       <o><e>esxi_credential</e></o>
       <o><e>snmp_credential</e></o>
@@ -5258,6 +5264,17 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
         <pattern>text</pattern>
       </ele>
     </ele>
+    <ele>
+      <name>ssh_elevate_credential</name>
+      <summary>SSH elevate credentials for target</summary>
+      <pattern>
+        <attrib>
+          <name>id</name>
+          <type>uuid</type>
+          <required>1</required>
+        </attrib>
+      </pattern>
+    </ele>
     <ele>
       <name>smb_credential</name>
       <summary>SMB login credentials for target</summary>
@@ -24621,6 +24638,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
       <p>
         The client uses the modify_target command to change an existing target.
       </p>
+      <p>
+        If the SSH elevate credential is set, the SSH credential must also be
+        set. The SSH elevate credential and the SSH credential must differ.
+      </p>
     </description>
     <pattern>
       <attrib>
@@ -24635,6 +24656,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
       <o><e>hosts_ordering</e></o>
       <o><e>exclude_hosts</e></o>
       <o><e>ssh_credential</e></o>
+      <o><e>ssh_elevate_credential</e></o>
       <o><e>smb_credential</e></o>
       <o><e>esxi_credential</e></o>
       <o><e>snmp_credential</e></o>
@@ -24685,6 +24707,17 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
         </attrib>
       </pattern>
     </ele>
+    <ele>
+      <name>ssh_elevate_credential</name>
+      <summary>SSH elevate credential to use on target</summary>
+      <pattern>
+        <attrib>
+          <name>id</name>
+          <type>uuid</type>
+          <required>1</required>
+        </attrib>
+      </pattern>
+    </ele>
     <ele>
       <name>smb_credential</name>
       <summary>SMB credential to use on target</summary>