diff --git a/troggle/expo/models.py b/troggle/expo/models.py
index 485468c84..bccb56e7d 100644
--- a/troggle/expo/models.py
+++ b/troggle/expo/models.py
@@ -212,7 +212,7 @@ class LogbookEntry(TroggleModel):
     cave    = models.ForeignKey('Cave',blank=True,null=True)
     place   = models.CharField(max_length=100,blank=True,null=True)  
     text    = models.TextField()
-    slug    = models.SlugField(max_length=100)
+    slug    = models.SlugField(max_length=50)
     #href    = models.CharField(max_length=100)