diff --git a/cmfrec/__init__.py b/cmfrec/__init__.py
index 7f612b2..fdc7191 100644
--- a/cmfrec/__init__.py
+++ b/cmfrec/__init__.py
@@ -1972,10 +1972,10 @@ def _item_factors_cold(self, I=None, I_bin=None, I_col=None, I_val=None):
 
         if isinstance(self.l1_lambda, np.ndarray):
             l1_lambda = self.l1_lambda[3]
-            lambda_bias = self.l1_lambda[1]
+            l1_lambda_bias = self.l1_lambda[1]
         else:
             l1_lambda = self.l1_lambda
-            lambda_bias = self.l1_lambda
+            l1_lambda_bias = self.l1_lambda
 
         I, I_col, I_val, I_bin = self._process_new_U(U=I, U_col=I_col, U_val=I_val, U_bin=I_bin, is_I=True)
 
@@ -1997,7 +1997,7 @@ def _item_factors_cold(self, I=None, I_bin=None, I_col=None, I_val=None):
                 self.A_,
                 np.empty((0,0), dtype=self.dtype_),
                 self.D_,
-                self.D_bin_,
+                self.Dbin_,
                 self.Ai_,
                 np.empty((0,0), dtype=self.dtype_),
                 np.empty((0,0), dtype=self.dtype_),
diff --git a/setup.py b/setup.py
index 9ecc254..26a1297 100644
--- a/setup.py
+++ b/setup.py
@@ -348,7 +348,7 @@ def test_supports_clang_reassociate(self):
 setup(
     name  = "cmfrec",
     packages = ["cmfrec"],
-    version = '3.5.1-5',
+    version = '3.5.1-6',
     description = 'Collective matrix factorization',
     author = 'David Cortes',
     url = 'https://github.com/david-cortes/cmfrec',