diff --git a/gestioncof/autocomplete.py b/gestioncof/autocomplete.py
index 1146e1c0..a9abbad7 100644
--- a/gestioncof/autocomplete.py
+++ b/gestioncof/autocomplete.py
@@ -60,7 +60,7 @@ def autocomplete(request):
             '(|(cn=*{bit:s}*)(uid=*{bit:s}*))'.format(bit=bit)
             for bit in bits if bit.isalnum()
         ))
-        if ldap_query != "(|)":
+        if ldap_query != "(&)":
             # If none of the bits were legal, we do not perform the query
             with Connection(settings.LDAP_SERVER_URL) as conn:
                 conn.search(
diff --git a/kfet/autocomplete.py b/kfet/autocomplete.py
index 2dd3c32f..c0019bf9 100644
--- a/kfet/autocomplete.py
+++ b/kfet/autocomplete.py
@@ -79,7 +79,7 @@ def account_create(request):
             '(|(cn=*{bit:s}*)(uid=*{bit:s}*))'.format(bit=word)
             for word in search_words if word.isalnum()
         ))
-        if ldap_query != "(|)":
+        if ldap_query != "(&)":
             # If none of the bits were legal, we do not perform the query
             with Connection(settings.LDAP_SERVER_URL) as conn:
                 conn.search(