diff --git a/src/InfoZIP.jl b/src/InfoZIP.jl
index 7cb8c59..6b7e137 100644
--- a/src/InfoZIP.jl
+++ b/src/InfoZIP.jl
@@ -8,6 +8,7 @@ export open_zip, create_zip
 using Compat.readstring
 using Compat.read
 using Compat.write
+using Compat.UTF8String
 if VERSION < v"0.5.0-dev+2228"
 Base.read(cmd::Cmd) = readbytes(cmd)
 end
diff --git a/src/info_zip.jl b/src/info_zip.jl
index 7dc8d1f..153926a 100644
--- a/src/info_zip.jl
+++ b/src/info_zip.jl
@@ -92,8 +92,7 @@ function Base.get(z::Archive, filename::AbstractString, default=nothing)
     else 
         b = read(`unzip -qc $(z.filename) $filename`)
     end
-    return isvalid(ASCIIString, b) ? ASCIIString(b) :
-           isvalid(UTF8String, b)  ? UTF8String(b)  : b
+    return isvalid(UTF8String, b)  ? UTF8String(b)  : b
 end
 
 
@@ -129,7 +128,7 @@ end
 # Read files from ZIP using iterator syntax.
 
 Base.eltype(::Type{Archive}) = 
-    Tuple{AbstractString,Union{ByteString,Vector{UInt8},AbstractString}}
+    Tuple{AbstractString,Union{UTF8String,Vector{UInt8},AbstractString}}
 
 Base.keys(z::Archive) =   z.keys
 Base.length(z::Archive) = length(z.keys)
diff --git a/src/zip_file.jl b/src/zip_file.jl
index 85e4b29..a1e7f20 100644
--- a/src/zip_file.jl
+++ b/src/zip_file.jl
@@ -19,7 +19,7 @@ function Archive(io::IO)
     cache = Dict()
     try
         reader = ZipFile.Reader(io, false)  
-        cache = Dict(f.name => "" for f in reader.files)
+        cache = Dict([Pair(f.name, "") for f in reader.files])
     end
     Archive(io, reader, nothing, cache, false)
 end
@@ -138,7 +138,7 @@ end
 # called to read the data from the archive.
 
 Base.eltype(::Type{Archive}) = 
-    Tuple{AbstractString,Union{ByteString,Vector{UInt8},AbstractString}}
+    Tuple{AbstractString,Union{UTF8String,Vector{UInt8},AbstractString}}
 
 Base.keys(z::Archive) = keys(z.cache)
 Base.length(z::Archive) = length(z.cache)
@@ -161,8 +161,7 @@ end
 
 function readfile(io::ZipFile.ReadableFile)
      b = read(io)
-     return isvalid(ASCIIString, b) ? ASCIIString(b) :
-            isvalid(UTF8String, b)  ? UTF8String(b)  : b
+     return isvalid(UTF8String, b)  ? UTF8String(b)  : b
 end