diff --git a/rtl/mem/sdram.vhd b/rtl/mem/sdram.vhd
index 04d8ac7..291cd5d 100644
--- a/rtl/mem/sdram.vhd
+++ b/rtl/mem/sdram.vhd
@@ -160,7 +160,7 @@ architecture arch of sdram is
   constant CLK_PERIOD : real := 1.0/CLK_FREQ*1000.0;
 
   -- the number of clock cycles to wait before initialising the device
-  constant DESELECT_WAIT : natural := natural(ceil(T_DESL/CLK_PERIOD));
+  constant INIT_WAIT : natural := natural(ceil(T_DESL/CLK_PERIOD));
 
   -- the number of clock cycles to wait while a LOAD MODE command is being
   -- executed
@@ -234,13 +234,13 @@ begin
       when INIT =>
         if wait_counter = 0 then
           next_cmd <= CMD_DESELECT;
-        elsif wait_counter = DESELECT_WAIT-1 then
+        elsif wait_counter = INIT_WAIT-1 then
           next_cmd <= CMD_PRECHARGE;
-        elsif wait_counter = PRECHARGE_WAIT-1 then
+        elsif wait_counter = INIT_WAIT+PRECHARGE_WAIT-1 then
           next_cmd <= CMD_AUTO_REFRESH;
-        elsif wait_counter = PRECHARGE_WAIT+REFRESH_WAIT-1 then
+        elsif wait_counter = INIT_WAIT+PRECHARGE_WAIT+REFRESH_WAIT-1 then
           next_cmd <= CMD_AUTO_REFRESH;
-        elsif wait_counter = PRECHARGE_WAIT+REFRESH_WAIT+REFRESH_WAIT-1 then
+        elsif wait_counter = INIT_WAIT+PRECHARGE_WAIT+REFRESH_WAIT+REFRESH_WAIT-1 then
           next_state <= MODE;
           next_cmd   <= CMD_LOAD_MODE;
         end if;