diff --git a/display.c b/display.c

index b11b18b..180f19c 100644

--- a/display.c

+++ b/display.c

@@ -3818,4 +3818,10 @@ char **cmdv;

 #endif /* BLANKER_PRG */

+void

+ClearScrollbackBuffer()

+{

+  if (D_CE3)

+    AddCStr(D_CE3);

+}

diff --git a/extern.h b/extern.h

index 7966008..e1ec242 100644

--- a/extern.h

+++ b/extern.h

@@ -316,6 +316,7 @@ extern int   color256to88 __P((int));

 extern void  ResetIdle __P((void));

 extern void  KillBlanker __P((void));

 extern void  DisplaySleep1000 __P((int, int));

+extern void  ClearScrollbackBuffer __P((void));

 /* resize.c */

 extern int   ChangeWindowSize __P((struct win *, int, int, int));

diff --git a/screen.c b/screen.c

index 64650e9..c68d949 100644

--- a/screen.c

+++ b/screen.c

@@ -1958,6 +1958,7 @@ void Detach(int mode)

     case D_LOCK:

       ClearAll();

+      ClearScrollbackBuffer();

       sign = SIG_LOCK;

       /* tell attacher to lock terminal with a lockprg. */

       break;

diff --git a/term.c b/term.c

index c92d85a..a6e9200 100644

--- a/term.c

+++ b/term.c

@@ -83,6 +83,7 @@ struct term term[T_N] =

   { "CD", T_STR  },

   { "ce", T_STR  },

   { "cb", T_STR  },

+  { "E3", T_STR  },

 /* initialise */

   { "is", T_STR  },