diff --git a/src/TableTraits.jl b/src/TableTraits.jl
index cff4ab1..86eb4dd 100644
--- a/src/TableTraits.jl
+++ b/src/TableTraits.jl
@@ -14,7 +14,9 @@ function isiterabletable(x::T) where {T}
 
     if Base.IteratorEltype(x)==Base.HasEltype()
         et = Base.eltype(x)
-        if et <: NamedTuple
+        if et === Union{}
+            return false
+        elseif et <: NamedTuple
             return true
         elseif et===Any
             return missing
diff --git a/test/runtests.jl b/test/runtests.jl
index 21324f7..1fc09ed 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -16,5 +16,6 @@ without_eltype = (i for i in table_array)
 @test !supports_get_columns_copy(table_array)
 @test !supports_get_columns_view(table_array)
 @test !supports_get_columns_copy_using_missing(table_array)
+@test isiterabletable(Union{}[]) == false
 
 end