diff --git a/build/tools/makegcdfirm/out_gcdfirm.c b/build/tools/makegcdfirm/out_gcdfirm.c
index 959c2616..b755fac5 100644
--- a/build/tools/makegcdfirm/out_gcdfirm.c
+++ b/build/tools/makegcdfirm/out_gcdfirm.c
@@ -409,7 +409,7 @@ static BOOL VERSION_Command(char * line, int num)
         ver8[2] = ConvToBCD8(t_st->tm_mday);
         ver8[3] = ConvToBCD8(t_st->tm_mon+1);
         ver8[4] = ConvToBCD8(t_st->tm_year);
-        ver8[5] = 0xff;
+        ver8[5] = 0x57;
         ver8[6] = 0xff;
         ver8[7] = 0xff;
     }
diff --git a/build/tools/makenandfirm/out_nandfirm.c b/build/tools/makenandfirm/out_nandfirm.c
index cdc1d44d..c3ed1210 100644
--- a/build/tools/makenandfirm/out_nandfirm.c
+++ b/build/tools/makenandfirm/out_nandfirm.c
@@ -363,11 +363,13 @@ static BOOL VERSION_Command(char * line, int num)
         ver8[2] = ConvToBCD8(t_st->tm_mday);
         ver8[3] = ConvToBCD8(t_st->tm_mon+1);
         ver8[4] = ConvToBCD8(t_st->tm_year);
-        ver8[5] = 0xff;
+        ver8[5] = 0x57;
         ver8[6] = 0xff;
         ver8[7] = 0xff;
     }
 
+    nandHeader.g.d.card_key = version;
+
     debug_printf2("version = %08llx\n", version);
 
     return CheckResult();
diff --git a/build/tools/makenorfirm/out_norfirm.c b/build/tools/makenorfirm/out_norfirm.c
index ea84713d..2eb98bd8 100644
--- a/build/tools/makenorfirm/out_norfirm.c
+++ b/build/tools/makenorfirm/out_norfirm.c
@@ -364,7 +364,7 @@ static BOOL VERSION_Command(char * line, int num)
         ver8[2] = ConvToBCD8(t_st->tm_mday);
         ver8[3] = ConvToBCD8(t_st->tm_mon+1);
         ver8[4] = ConvToBCD8(t_st->tm_year);
-        ver8[5] = 0xff;
+        ver8[5] = 0x57;
         ver8[6] = 0xff;
         ver8[7] = 0xff;
     }