diff --git a/src/arch/alpha/linux/linux.hh b/src/arch/alpha/linux/linux.hh
index e9947644c..c728ce1fb 100644
--- a/src/arch/alpha/linux/linux.hh
+++ b/src/arch/alpha/linux/linux.hh
@@ -105,6 +105,7 @@ class AlphaLinux : public Linux
     static const unsigned TIOCISATTY_ = 0x2000745e;
     static const unsigned TIOCGETS_   = 0x402c7413;
     static const unsigned TIOCGETA_   = 0x40127417;
+    static const unsigned TCSETAW_    = 0x80147419; // 2.6.15 kernel
     //@}
 
     /// For table().
diff --git a/src/arch/alpha/tru64/tru64.hh b/src/arch/alpha/tru64/tru64.hh
index 4ba35fc50..0ee12973c 100644
--- a/src/arch/alpha/tru64/tru64.hh
+++ b/src/arch/alpha/tru64/tru64.hh
@@ -99,6 +99,7 @@ class AlphaTru64 : public Tru64
     static const unsigned TIOCISATTY_ = 0x2000745e;
     static const unsigned TIOCGETS_   = 0x402c7413;
     static const unsigned TIOCGETA_   = 0x40127417;
+    static const unsigned TCSETAW_    = 0x80147419;
     //@}
 
     //@{
diff --git a/src/arch/arm/linux/linux.hh b/src/arch/arm/linux/linux.hh
index b9b10a593..f829dd7c6 100644
--- a/src/arch/arm/linux/linux.hh
+++ b/src/arch/arm/linux/linux.hh
@@ -86,6 +86,7 @@ class ArmLinux : public Linux
     static const unsigned TIOCISATTY_ = 0x2000745e;
     static const unsigned TIOCGETS_   = 0x402c7413;
     static const unsigned TIOCGETA_   = 0x40127417;
+    static const unsigned TCSETAW_    = 0x5407;     // 2.6.15 kernel
     //@}
 
     /// For table().
diff --git a/src/arch/mips/linux/linux.hh b/src/arch/mips/linux/linux.hh
index b30cca2fb..a2418cfb6 100644
--- a/src/arch/mips/linux/linux.hh
+++ b/src/arch/mips/linux/linux.hh
@@ -100,6 +100,7 @@ class MipsLinux : public Linux
     static const unsigned TIOCISATTY_ = 0x5480;
     static const unsigned TIOCGETS_   = 0x540d;
     static const unsigned TIOCGETA_   = 0x7417;
+    static const unsigned TCSETAW_    = 0x5403; // 2.6.15 kernel
     //@}
 
     /// For table().
diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh
index 21f8201c8..0c51c7dec 100644
--- a/src/sim/syscall_emul.hh
+++ b/src/sim/syscall_emul.hh
@@ -500,6 +500,7 @@ ioctlFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
       case OS::TIOCGETC_:
       case OS::TIOCGETS_:
       case OS::TIOCGETA_:
+      case OS::TCSETAW_:
         return -ENOTTY;
 
       default: