diff --git a/PFERD/ffm.py b/PFERD/ffm.py
index b20b414..0116176 100644
--- a/PFERD/ffm.py
+++ b/PFERD/ffm.py
@@ -51,7 +51,7 @@ class FfM:
 
 		for found in soup.find_all("a", href=self.LINK_RE):
 			url = found["href"]
-			filename = re.match(self.LINK_RE, url).group(1)
+			filename = re.match(self.LINK_RE, url).group(1).replace("/", ".")
 			logger.debug(f"Found file {filename} at {url}")
 
 			old_path = pathlib.PurePath(filename)
diff --git a/PFERD/ilias.py b/PFERD/ilias.py
index c601cfd..57551e4 100644
--- a/PFERD/ilias.py
+++ b/PFERD/ilias.py
@@ -80,7 +80,7 @@ class ILIAS:
 
 		found = soup.find_all("a", {"class": "il_ContainerItemTitle", "href": self.FILE_RE})
 		for element in found:
-			file_stem = element.string.strip()
+			file_stem = element.string.strip().replace("/", ".")
 			file_type = element.parent.parent.parent.find("div", {"class": "il_ItemProperties"}).find("span").string.strip()
 			file_id = re.search(self.FILE_RE, element.get("href")).group(1)
 
@@ -108,7 +108,7 @@ class ILIAS:
 
 		found = soup.find_all("a", {"class": "il_ContainerItemTitle", "href": self.DIR_RE})
 		for element in found:
-			dir_name = element.string.strip()
+			dir_name = element.string.strip().replace("/", ".")
 			ref_id = re.search(self.DIR_RE, element.get("href")).group(1)
 			dir_id = f"fold_{ref_id}"
 			dirs.append((dir_name, dir_id))