diff --git a/docs/sources/reference/templating.md b/docs/sources/reference/templating.md
index 340384b62e5..7426877654b 100644
--- a/docs/sources/reference/templating.md
+++ b/docs/sources/reference/templating.md
@@ -248,7 +248,7 @@ Grafana has global built-in variables that can be used in expressions in the que
 ### Time range variables
 
 Grafana has two built in time range variables in `$__from` and `$__to`. They are currently always interpolated
-as epoch milliseconds.
+as epoch milliseconds. These variables are only available in Grafana v6.0 and above.
 
 ### The $__interval Variable