diff --git a/adstex.py b/adstex.py
index 6f55eeb..794d6cd 100644
--- a/adstex.py
+++ b/adstex.py
@@ -28,7 +28,7 @@
 except ImportError:
     from urllib import unquote
 
-__version__ = "0.3.6"
+__version__ = "0.3.7"
 
 _this_year = date.today().year % 100
 _this_cent = date.today().year // 100
@@ -159,7 +159,7 @@ def id2bibcode(id_this, possible_id_types=("bibcode", "doi", "arxiv")):
     for id_type in possible_id_types:
         m = _re_id[id_type].search(id_this)
         if m:
-            s = fixedAdsSearchQuery(q="identifier:{}".format(m.group()), fl=["bibcode"])
+            s = fixedAdsSearchQuery(q="identifier:\"{}\"".format(m.group()), fl=["bibcode"])
             try:
                 return next(s).bibcode
             except StopIteration: