diff --git a/scapy/fields.py b/scapy/fields.py
index 0843adc42c616e55dd31bed416858de6b47efa6e..4f2fcc60fff31567f580189abbe3283e8a5843ce 100644
--- a/scapy/fields.py
+++ b/scapy/fields.py
@@ -783,6 +783,8 @@ class BitField(Field):
             return s,b
     def randval(self):
         return RandNum(0,2**self.size-1)
+    def i2len(self, pkt, x):
+        return float(self.size)/8
 
 
 class BitFieldLenField(BitField):
diff --git a/test/regression.uts b/test/regression.uts
index 9a614020717956c1a34acf39842b7628bc2e0a7f..daefcafb1203135239da9bcf92c5bf6c72ee37a5 100644
--- a/test/regression.uts
+++ b/test/regression.uts
@@ -7969,6 +7969,7 @@ r1 == b'@\x04\x08\x08\x08\x08'
 r2 = b.dec(r1)[0]
 r2.val == '8.8.8.8'
 
+
 ############
 ############
 + inet.py
@@ -8113,3 +8114,22 @@ def test_IPID_count():
     assert(lines[0].endswith("Probably 3 classes: [4613, 53881, 58437]"))
 
 test_IPID_count()
+
+
+############
+############
++ Fields
+
+= FieldLenField with BitField
+class Test(Packet):
+    name = "Test"
+    fields_desc = [
+        FieldLenField("BitCount", None, fmt="H", count_of="Values"),
+        FieldLenField("ByteCount", None, fmt="B", length_of="Values"),
+        FieldListField("Values", [], BitField("data", 0x0, size=1),
+                       count_from=lambda pkt: pkt.BitCount),
+    ]
+
+pkt = Test(str(Test(Values=[0, 0, 0, 0, 1, 1, 1, 1])))
+assert(pkt.BitCount == 8)
+assert(pkt.ByteCount == 1)