diff --git a/doc/03-monitoring-basics.md b/doc/03-monitoring-basics.md
index db7675354a9..81dd2f1f39c 100644
--- a/doc/03-monitoring-basics.md
+++ b/doc/03-monitoring-basics.md
@@ -500,7 +500,7 @@ up macros and their respective values:
 2. Service object
 3. Host object
 4. Command object
-5. Global custom variables in the `Vars` constant
+5. IcingaApplication object
 
 This execution order allows you to define default values for custom variables
 in your command objects.
diff --git a/doc/17-language-reference.md b/doc/17-language-reference.md
index 162350edc2f..4e5d20c0546 100644
--- a/doc/17-language-reference.md
+++ b/doc/17-language-reference.md
@@ -506,7 +506,6 @@ ZonesDir            |**Read-only.** Contains the path of the zones.d directory.
 
 Constant            | Description
 --------------------|-------------------
-Vars                |**Read-write.** Contains a dictionary with global custom variables. Not set by default.
 NodeName            |**Read-write.** Contains the cluster node name. Set to the local hostname by default.
 ReloadTimeout       |**Read-write.** Defines the reload timeout for child processes. Defaults to `300s`.
 Environment         |**Read-write.** The name of the Icinga environment. Included in the SNI host name for outbound connections. Not set by default.
diff --git a/tools/syntax/nano/icinga2.nanorc b/tools/syntax/nano/icinga2.nanorc
index cff78be3b64..c3c654234cb 100644
--- a/tools/syntax/nano/icinga2.nanorc
+++ b/tools/syntax/nano/icinga2.nanorc
@@ -126,7 +126,6 @@ icolor green		"\s(/=)\s"
 icolor yellow 	"(PrefixDir|SysconfDir|ZonesDir|LocalStateDir|RunDir|PkgDataDir|StatePath|ObjectsPath)"
 icolor yellow 	"(PidPath|NodeName|ApplicationType|EnableNotifications|EnableEventHandlers|EnableFlapping)"
 icolor yellow 	"(EnableHostChecks|EnableServiceChecks|EnablePerfdata|UseVfork|RunAsUser|RunAsGroup|PluginDir)"
-icolor yellow 	"(Vars\s+)"
 
 ## Boolean
 icolor blue 	"(true|false)"
diff --git a/tools/syntax/vim/syntax/icinga2.vim b/tools/syntax/vim/syntax/icinga2.vim
index 5201d6fc836..61d25bb2a52 100644
--- a/tools/syntax/vim/syntax/icinga2.vim
+++ b/tools/syntax/vim/syntax/icinga2.vim
@@ -266,7 +266,7 @@ syn keyword	icinga2PathConstant	ObjectsPath PidPath PkgDataDir PrefixDir Program
 syn keyword 	icinga2PathConstant	VarsPath ZonesDir
 
 " Global constants
-syn keyword 	icinga2GlobalConstant	Vars NodeName Environment RunAsUser RunAsGroup MaxConcurrentChecks ApiBindHost ApiBindPort EventEngine AttachDebugger
+syn keyword 	icinga2GlobalConstant	NodeName Environment RunAsUser RunAsGroup MaxConcurrentChecks ApiBindHost ApiBindPort EventEngine AttachDebugger
 
 " Application runtime constants
 syn keyword	icinga2GlobalConstant	PlatformName PlatformVersion PlatformKernel PlatformKernelVersion BuildCompilerName BuildCompilerVersion BuildHostName