diff --git a/src/dates.jl b/src/dates.jl
index baf33ebc..bc4c15be 100644
--- a/src/dates.jl
+++ b/src/dates.jl
@@ -20,7 +20,9 @@ Return the units that correspond to a particular period.
 
 # Examples
 
-```julia
+```jldoctest
+julia> using Dates
+
 julia> unit(Second(15)) == u"s"
 true