diff --git a/lib/CPUs/MIPS/syn/ise101/project/mips_top.xcf b/lib/CPUs/MIPS/syn/ise101/project/mips_top.xcf
index 069194b..6b049b9 100644
--- a/lib/CPUs/MIPS/syn/ise101/project/mips_top.xcf
+++ b/lib/CPUs/MIPS/syn/ise101/project/mips_top.xcf
@@ -12,3 +12,9 @@ BEGIN MODEL biu
 	INST inst_write_fifo ram_style = distributed;
 END;
 
+BEGIN MODEL mips_top
+	NET cpu_clk clock_buffer = true;
+	NET cpu_clk buffer_type	= bufg;
+	NET CLK_I clock_buffer = true;
+	NET CLK_I buffer_type = bufg;
+END;