diff --git a/base/docs/helpdb.jl b/base/docs/helpdb.jl
index bf1914c5d1d69..efe8601b210b6 100644
--- a/base/docs/helpdb.jl
+++ b/base/docs/helpdb.jl
@@ -5703,7 +5703,7 @@ julia> "Test "^3
 "Test Test Test "
 ```
 """
-Base.(:(^))(s::String, n::Int)
+Base.(:(^))(s::AbstractString, n::Int)
 
 doc"""
     position(s)