diff --git a/types/configs.pp b/types/configs.pp
index 6af93d31..b35462df 100644
--- a/types/configs.pp
+++ b/types/configs.pp
@@ -45,12 +45,20 @@
     Optional['metrics-enabled'] => Boolean,
     Optional['proxy'] => Enum['edge','reencrypt','passthrough','none'],
     Optional['vault'] => Enum['vault','vault-dir'],
-    Optional['log'] => Array[Enum['console','file']],
+    Optional['log'] => Array[Enum['console','file','gelf']],
     Optional['log-console-color'] => Boolean,
     Optional['log-console-format'] => String[1],
     Optional['log-console-output'] => Enum['default','json'],
     Optional['log-file'] => Stdlib::Absolutepath,
     Optional['log-file-format'] => String[1],
     Optional['log-level'] => String[1],
+    Optional['log-gelf-facility'] => String[1],
+    Optional['log-gelf-host'] => Stdlib::Host,
+    Optional['log-gelf-include-location'] => Boolean,
+    Optional['log-gelf-include-message-parameters'] => Boolean,
+    Optional['log-gelf-include-stack-trace'] => Boolean,
+    Optional['log-gelf-max-message-size'] => Integer,
+    Optional['log-gelf-port'] => Stdlib::Port,
+    Optional['log-gelf-timestamp-format'] => String[1],
   }
-]
\ No newline at end of file
+]