diff --git a/magnet/ize/memory.py b/magnet/ize/memory.py
index 314ab29..98c3e44 100644
--- a/magnet/ize/memory.py
+++ b/magnet/ize/memory.py
@@ -127,4 +127,4 @@ async def is_dupe(self, q: str = None):
             output_fields=['text', 'document'],
             limit=1
         )
-        return True if match and match[0] and match[0][0].distance >= 0.99 else False
\ No newline at end of file
+        return True if match and match[0] and match[0][0].distance == 1 else False
\ No newline at end of file