diff --git a/liteeth/core/mac/core/crc.py b/liteeth/core/mac/core/crc.py
index 2daabc2..bd24c26 100644
--- a/liteeth/core/mac/core/crc.py
+++ b/liteeth/core/mac/core/crc.py
@@ -238,7 +238,7 @@ class LiteEthMACCRCChecker(Module):
         fifo_full = Signal()
 
         self.comb += [
-            fifo_full.eq(fifo.fifo.level == ratio),
+            fifo_full.eq(fifo.level == ratio),
             fifo_in.eq(sink.stb & (~fifo_full | fifo_out)),
             fifo_out.eq(source.stb & source.ack),
 
diff --git a/liteeth/frontend/tty.py b/liteeth/frontend/tty.py
index b98c8c6..72ce89a 100644
--- a/liteeth/frontend/tty.py
+++ b/liteeth/frontend/tty.py
@@ -23,7 +23,7 @@ class LiteEthTTYTX(Module):
 
             level = Signal(max=fifo_depth)
             level_update = Signal()
-            self.sync += If(level_update, level.eq(fifo.fifo.level))
+            self.sync += If(level_update, level.eq(fifo.level))
 
             self.submodules.counter = counter = Counter(max=fifo_depth)