diff --git a/tb/axis_async_fifo_adapter/Makefile b/tb/axis_async_fifo_adapter/Makefile
index 90cca22fe..655c2d195 100644
--- a/tb/axis_async_fifo_adapter/Makefile
+++ b/tb/axis_async_fifo_adapter/Makefile
@@ -41,7 +41,6 @@ export PARAM_S_KEEP_WIDTH := $(shell expr \( $(PARAM_S_DATA_WIDTH) + 7 \) / 8 )
 export PARAM_M_DATA_WIDTH := 8
 export PARAM_M_KEEP_ENABLE := $(shell expr $(PARAM_M_DATA_WIDTH) \> 8 )
 export PARAM_M_KEEP_WIDTH := $(shell expr \( $(PARAM_M_DATA_WIDTH) + 7 \) / 8 )
-export PARAM_LAST_ENABLE := 1
 export PARAM_ID_ENABLE := 1
 export PARAM_ID_WIDTH := 8
 export PARAM_DEST_ENABLE := 1
diff --git a/tb/axis_fifo_adapter/Makefile b/tb/axis_fifo_adapter/Makefile
index e53ca10b3..fee2a01bb 100644
--- a/tb/axis_fifo_adapter/Makefile
+++ b/tb/axis_fifo_adapter/Makefile
@@ -41,7 +41,6 @@ export PARAM_S_KEEP_WIDTH := $(shell expr \( $(PARAM_S_DATA_WIDTH) + 7 \) / 8 )
 export PARAM_M_DATA_WIDTH := 8
 export PARAM_M_KEEP_ENABLE := $(shell expr $(PARAM_M_DATA_WIDTH) \> 8 )
 export PARAM_M_KEEP_WIDTH := $(shell expr \( $(PARAM_M_DATA_WIDTH) + 7 \) / 8 )
-export PARAM_LAST_ENABLE := 1
 export PARAM_ID_ENABLE := 1
 export PARAM_ID_WIDTH := 8
 export PARAM_DEST_ENABLE := 1