diff --git a/osbuild/sources.py b/osbuild/sources.py
index 74fc4e6e..7c572a6b 100644
--- a/osbuild/sources.py
+++ b/osbuild/sources.py
@@ -55,6 +55,7 @@ class SourceService(host.Service):
         super().__init__(*args, **kwargs)
         self.cache = None
         self.options = None
+        self.tmpdir = None
 
     @abc.abstractmethod
     def download(self, items):
@@ -80,6 +81,7 @@ class SourceService(host.Service):
     def dispatch(self, method: str, args, fds):
         if method == "download":
             self.setup(args)
-            return self.download(SourceService.load_items(fds)), None
+            with tempfile.TemporaryDirectory(prefix=".unverified-", dir=self.cache) as self.tmpdir:
+                return self.download(SourceService.load_items(fds)), None
 
         raise host.ProtocolError("Unknown method")
diff --git a/sources/org.osbuild.inline b/sources/org.osbuild.inline
index 53098d18..e13116f0 100755
--- a/sources/org.osbuild.inline
+++ b/sources/org.osbuild.inline
@@ -84,8 +84,7 @@ class InlineSource(sources.SourceService):
     content_type = "org.osbuild.files"
 
     def download(self, items):
-        with tempfile.TemporaryDirectory(prefix=".unverified-", dir=self.cache) as tmpdir:
-            process(items, self.cache, tmpdir)
+        process(items, self.cache, self.tmpdir)
 
 
 def main():