diff --git a/syn/vivado/axis_async_fifo.tcl b/syn/vivado/axis_async_fifo.tcl
index 5654295..a7498dd 100644
--- a/syn/vivado/axis_async_fifo.tcl
+++ b/syn/vivado/axis_async_fifo.tcl
@@ -70,7 +70,7 @@ foreach fifo_inst [get_cells -hier -filter {(ORIG_REF_NAME == axis_async_fifo ||
         set_property ASYNC_REG TRUE $sync_ffs
 
         set_max_delay -from [get_cells "$fifo_inst/rd_ptr_reg_reg[*] $fifo_inst/rd_ptr_gray_reg_reg[*]"] -to [get_cells "$fifo_inst/rd_ptr_gray_sync1_reg_reg[*]"] -datapath_only $read_clk_period
-        set_bus_skew  -from [get_cells "$fifo_inst/rd_ptr_reg_reg[*] $fifo_inst/rd_ptr_gray_reg_reg[*]"] -to [get_cells "$fifo_inst/rd_ptr_gray_sync1_reg_reg[*]"] $write_clk_period
+        set_bus_skew  -from [get_cells "$fifo_inst/rd_ptr_reg_reg[*] $fifo_inst/rd_ptr_gray_reg_reg[*]"] -to [get_cells "$fifo_inst/rd_ptr_gray_sync1_reg_reg[*]"] $read_clk_period
     }
 
     set sync_ffs [get_cells -quiet -hier -regexp ".*/wr_ptr_gray_sync\[12\]_reg_reg\\\[\\d+\\\]" -filter "PARENT == $fifo_inst"]
@@ -79,7 +79,7 @@ foreach fifo_inst [get_cells -hier -filter {(ORIG_REF_NAME == axis_async_fifo ||
         set_property ASYNC_REG TRUE $sync_ffs
 
         set_max_delay -from [get_cells -quiet "$fifo_inst/wr_ptr_reg_reg[*] $fifo_inst/wr_ptr_gray_reg_reg[*]"] -to [get_cells "$fifo_inst/wr_ptr_gray_sync1_reg_reg[*]"] -datapath_only $write_clk_period
-        set_bus_skew  -from [get_cells -quiet "$fifo_inst/wr_ptr_reg_reg[*] $fifo_inst/wr_ptr_gray_reg_reg[*]"] -to [get_cells "$fifo_inst/wr_ptr_gray_sync1_reg_reg[*]"] $read_clk_period
+        set_bus_skew  -from [get_cells -quiet "$fifo_inst/wr_ptr_reg_reg[*] $fifo_inst/wr_ptr_gray_reg_reg[*]"] -to [get_cells "$fifo_inst/wr_ptr_gray_sync1_reg_reg[*]"] $write_clk_period
     }
 
     set sync_ffs [get_cells -quiet -hier -regexp ".*/wr_ptr_commit_sync_reg_reg\\\[\\d+\\\]" -filter "PARENT == $fifo_inst"]