diff --git a/msg/cpuload.msg b/msg/cpuload.msg
index ef85fa58a3..9381c05e83 100644
--- a/msg/cpuload.msg
+++ b/msg/cpuload.msg
@@ -1 +1,2 @@
 float32 load                    # processor load from 0 to 1
+float32 ram_usage		# RAM usage from 0 to 1