diff --git a/swh/loader/svn/svn.py b/swh/loader/svn/svn.py
--- a/swh/loader/svn/svn.py
+++ b/swh/loader/svn/svn.py
@@ -90,7 +90,7 @@
         # compute root directory path from the remote repository URL, required to
         # properly load the sub-tree of a repository mounted from a dump file
         repos_root_url = self.info(origin_url).repos_root_url
-        self.root_directory = origin_url.replace(repos_root_url, "", 1)
+        self.root_directory = origin_url.rstrip("/").replace(repos_root_url, "", 1)
 
     def __str__(self):
         return str(
diff --git a/swh/loader/svn/tests/test_loader.py b/swh/loader/svn/tests/test_loader.py
--- a/swh/loader/svn/tests/test_loader.py
+++ b/swh/loader/svn/tests/test_loader.py
@@ -1912,8 +1912,9 @@
     )
 
     for i in range(1, 4):
-        # load each project in the repository separately
-        origin_url = f"{repo_url}/project{i}"
+        # load each project in the repository separately and check behavior
+        # is the same if origin URL has a trailing slash or not
+        origin_url = f"{repo_url}/project{i}{'/' if i%2 else ''}"
 
         loader_params = {
             "storage": swh_storage,