diff --git a/taskwiki/vwtask.py b/taskwiki/vwtask.py
index 2398111..d725d09 100644
--- a/taskwiki/vwtask.py
+++ b/taskwiki/vwtask.py
@@ -175,8 +175,8 @@ class VimwikiTask(object):
             # * [ ] this is new task
             # with project:home applied
 
-            if '--' in self['description']:
-                first_part, second_part = self['description'].split('--', 1)
+            if ' -- ' in self['description']:
+                first_part, second_part = self['description'].split(' -- ', 1)
 
                 new_description = first_part.strip()
                 modstring = second_part.strip()
diff --git a/tests/test_vwtask_parsing.py b/tests/test_vwtask_parsing.py
index 72d666d..704dfb8 100644
--- a/tests/test_vwtask_parsing.py
+++ b/tests/test_vwtask_parsing.py
@@ -99,3 +99,9 @@ class TestParsingVimwikiTask(object):
         assert vwtask['priority'] == None
         assert vwtask['due'] == None
         assert vwtask['uuid'] == None
+
+    def test_not_modstring(self):
+        self.cache.buffer[0] = "* [ ] Task https://somewhere/dash--dash"
+        vwtask = self.VimwikiTask.from_line(self.cache, 0)
+
+        assert vwtask['description'] == u"Task https://somewhere/dash--dash"