diff --git a/osc/store.py b/osc/store.py
index 1d0199bb..fd6d306f 100644
--- a/osc/store.py
+++ b/osc/store.py
@@ -174,13 +174,22 @@ class Store:
         assert node.tag == node_name
         api.write_xml_node_to_file(node, path)
 
+    def _sanitize_apiurl(self, value):
+        # apiurl shouldn't end with a slash, strip it so we can use apiurl without modifications
+        # in config['api_host_options'][apiurl] and other places
+        if isinstance(value, str):
+            value = value.strip("/")
+        elif isinstance(value, bytes):
+            value = value.strip(b"/")
+        return value
+
     @property
     def apiurl(self):
-        return self.read_string("_apiurl")
+        return self._sanitize_apiurl(self.read_string("_apiurl"))
 
     @apiurl.setter
     def apiurl(self, value):
-        self.write_string("_apiurl", value)
+        self.write_string("_apiurl", self._sanitize_apiurl(value))
 
     @property
     def project(self):
diff --git a/tests/test_store.py b/tests/test_store.py
index d905c0ec..58a1e751 100644
--- a/tests/test_store.py
+++ b/tests/test_store.py
@@ -98,6 +98,14 @@ class TestStore(unittest.TestCase):
         store2 = Store(self.tmpdir)
         self.assertEqual(store2.apiurl, "https://example.com")
 
+    def test_apiurl_no_trailing_slash(self):
+        self.store.apiurl = "https://example.com/"
+        self.fileEquals("_apiurl", "https://example.com\n")
+
+        self.store.write_string("_apiurl", "https://example.com/")
+        self.fileEquals("_apiurl", "https://example.com/\n")
+        self.assertEqual(self.store.apiurl, "https://example.com")
+
     def test_package(self):
         self.fileEquals("_package", "package name\n")