diff --git a/src/tinuous/util.py b/src/tinuous/util.py
index ba8b751..19a8303 100644
--- a/src/tinuous/util.py
+++ b/src/tinuous/util.py
@@ -133,7 +133,7 @@ def get_github_token() -> str:
 
 def sanitize_pathname(s: str) -> str:
     return re.sub(
-        r'[\0\x5C/<>:|"?*%]', lambda m: sanitize_str(m.group()), re.sub(r"\s", " ", s)
+        r'[\0\x5C/<>:|"?*%~]', lambda m: sanitize_str(m.group()), re.sub(r"\s", " ", s)
     )
 
 
diff --git a/test/test_util.py b/test/test_util.py
index bfb6662..8b29667 100644
--- a/test/test_util.py
+++ b/test/test_util.py
@@ -143,6 +143,7 @@ def test_removeprefix(s: str, prefix: str, result: str) -> None:
         ('"foo"', "%22foo%22"),
         ("foo?", "foo%3f"),
         ("foo*bar", "foo%2abar"),
+        ("foo~bar", "foo%7ebar"),
         ("foo%20bar", "foo%2520bar"),
         ("foo\0bar", "foo%00bar"),
     ],