diff --git a/frontend/document/pdfdocument.lua b/frontend/document/pdfdocument.lua
index bda592979..d49949f98 100644
--- a/frontend/document/pdfdocument.lua
+++ b/frontend/document/pdfdocument.lua
@@ -131,3 +131,4 @@ function PdfDocument:drawPage(target, x, y, rect, pageno, zoom, rotation, gamma,
 end
 
 DocumentRegistry:addProvider("pdf", "application/pdf", PdfDocument)
+DocumentRegistry:addProvider("cbz", "application/cbz", PdfDocument)
diff --git a/frontend/settings.lua b/frontend/settings.lua
index 0b7e66b9c..bf7de9240 100644
--- a/frontend/settings.lua
+++ b/frontend/settings.lua
@@ -36,6 +36,9 @@ function DocSettings:open(docfile)
 		-- we handle reader setting as special case
 		conf_path = "settings.reader.lua"
 	else
+		if lfs.attributes("./history","mode") ~= "directory" then
+			lfs.mkdir("history")
+		end
 		conf_path = self:getHistoryPath(docfile)
 	end
 	-- construct settings obj