diff --git a/lib/SDRAM/ddr_sdr_v1_5/src/sdr_phy_virtex4.vhd b/lib/SDRAM/ddr_sdr_v1_5/src/sdr_phy_virtex4.vhd
index 5dbcc71..cf2c08f 100644
--- a/lib/SDRAM/ddr_sdr_v1_5/src/sdr_phy_virtex4.vhd
+++ b/lib/SDRAM/ddr_sdr_v1_5/src/sdr_phy_virtex4.vhd
@@ -109,8 +109,8 @@ inst_sdram_clk : entity work.sdram_clk
 		error_out		=> error
 	);
 
-	clk_wr	<= clk0_s;
-	clk_rd	<= clk0_s;
+	clk_wr	<= clk0;
+	clk_rd	<= clk0;
 	
 rst0_gen:
 	process(clk0)