diff --git a/input/models.py b/input/models.py
index b065034..f4da70e 100755
--- a/input/models.py
+++ b/input/models.py
@@ -274,13 +274,15 @@ TYPE_CHOICES = {
     TYPE_VIS: type_link('E-Mail-Adressen_und_Visitenkarten#Visitenkarten', 'Visitenkarten'),
 }
 
+LIBRARY_TYPES = TYPE_BIB, TYPE_ELIT, TYPE_SOFT
+LIBRARY_TYPE_CHOICES = [(choice, TYPE_CHOICES[choice]) for choice in LIBRARY_TYPES]
 
 # same model is used for Library, ELitStip and Software!
 class Library(Grant):
 
     type = models.CharField(
         max_length=4,
-        choices=TYPE_CHOICES.items(), #attention: actually only BIB, ELIT, SOFT should be used here
+        choices=LIBRARY_TYPE_CHOICES,
         default='BIB',
     )
     library = models.CharField(max_length=200)