diff --git a/gestioncof/autocomplete.py b/gestioncof/autocomplete.py
index cc6b49ee..1eae6920 100644
--- a/gestioncof/autocomplete.py
+++ b/gestioncof/autocomplete.py
@@ -31,8 +31,8 @@ def autocomplete(request):
     bits = q.split()
 
     # Fetching data from User and CofProfile tables
-    queries['members'] = CofProfile.objects.filter(Q(is_cof=True))
-    queries['users'] = User.objects.filter(Q(profile__is_cof=False))
+    queries['members'] = CofProfile.objects.filter(is_cof=True)
+    queries['users'] = User.objects.filter(profile__is_cof=False)
     for bit in bits:
         queries['members'] = queries['members'].filter(
             Q(user__first_name__icontains=bit)
@@ -48,16 +48,17 @@ def autocomplete(request):
 
     # Clearing redundancies
     usernames = (
-        list(queries['members'].values_list('login_clipper', flat='True'))
-        + list(queries['users'].values_list('profile__login_clipper',
-                                            flat='True'))
+        set(queries['members'].values_list('login_clipper', flat='True'))
+        | set(queries['users'].values_list('profile__login_clipper',
+                                           flat='True'))
     )
 
     # Fetching data from the SPI
     if hasattr(settings, 'LDAP_SERVER_URL'):
         # Fetching
         ldap_query = '(|{:s})'.format(''.join(
-            ['(cn=*{:s}*)'.format(bit) for bit in bits]
+            ['(cn=*{bit:s}*)(uid=*{bit:s}*)'.format(**{"bit": bit})
+             for bit in bits]
         ))
         with Connection(settings.LDAP_SERVER_URL) as conn:
             conn.search(
@@ -69,11 +70,11 @@ def autocomplete(request):
         queries['clippers'] = [
             Clipper(clipper.uid, clipper.cn)
             for clipper in queries['clippers']
-            if clipper.uid not in usernames
+            if str(clipper.uid) not in usernames
         ]
 
     # Resulting data
     data.update(queries)
-    data['options'] = sum([len(query) for query in queries])
+    data['options'] = sum(len(query) for query in queries)
 
     return shortcuts.render(request, "autocomplete_user.html", data)
diff --git a/kfet/autocomplete.py b/kfet/autocomplete.py
index 31f36943..6f066856 100644
--- a/kfet/autocomplete.py
+++ b/kfet/autocomplete.py
@@ -34,8 +34,8 @@ def account_create(request):
 
     # Fetching data from User, CofProfile and Account tables
     queries['kfet']         = Account.objects
-    queries['users_cof']    = User.objects.filter(Q(profile__is_cof = True))
-    queries['users_notcof'] = User.objects.filter(Q(profile__is_cof = False))
+    queries['users_cof']    = User.objects.filter(profile__is_cof = True)
+    queries['users_notcof'] = User.objects.filter(profile__is_cof = False)
 
     for word in search_words:
         queries['kfet'] = queries['kfet'].filter(
@@ -56,7 +56,7 @@ def account_create(request):
 
     # Clearing redundancies
     queries['kfet'] = queries['kfet'].distinct()
-    usernames = list(
+    usernames = set(
         queries['kfet'].values_list('cofprofile__user__username', flat=True))
     queries['kfet'] = [
         (account, account.cofprofile.user)
@@ -67,16 +67,16 @@ def account_create(request):
         queries['users_cof'].exclude(username__in=usernames).distinct()
     queries['users_notcof'] = \
         queries['users_notcof'].exclude(username__in=usernames).distinct()
-    usernames += list(
+    usernames |= set(
         queries['users_cof'].values_list('username', flat=True))
-    usernames += list(
+    usernames |= set(
         queries['users_notcof'].values_list('username', flat=True))
 
     # Fetching data from the SPI
     if hasattr(settings, 'LDAP_SERVER_URL'):
         # Fetching
         ldap_query = '(|{:s})'.format(''.join(
-            ['(cn=*{:s}*)'.format(bit) for bit in bits]
+            ['(cn=*{bit:s}*)(uid=*{bit:s}*)'.format(**{"bit": bit}) for bit in bits]
         ))
         with Connection(settings.LDAP_SERVER_URL) as conn:
             conn.search(
@@ -88,7 +88,7 @@ def account_create(request):
         queries['clippers'] = [
             Clipper(clipper.uid, clipper.cn)
             for clipper in queries['clippers']
-            if clipper.uid not in usernames
+            if str(clipper.uid) not in usernames
         ]
 
     # Resulting data