diff --git a/python/multicorn/ldapfdw.py b/python/multicorn/ldapfdw.py
index 6761f1b..3412b9c 100755
--- a/python/multicorn/ldapfdw.py
+++ b/python/multicorn/ldapfdw.py
@@ -91,7 +91,7 @@
 SPECIAL_CHARS = {
     ord('*'): '\\2a',
     ord('('): '\\28',
-    ord(')'): '\29',
+    ord(')'): '\\29',
     ord('\\'): '\\5c',
     ord('\x00'): '\\00',
     ord('/'): '\\2f'