diff --git a/rc/bashrc b/rc/bashrc
index 7b0e93a7..da6469e9 100644
--- a/rc/bashrc
+++ b/rc/bashrc
@@ -591,6 +591,9 @@ alias apt-builddep="apt-rdepends --build-depends --follow=DEPENDS"
 # http://superuser.com/a/638033 - get embedded Windows key
 alias winkey="xxd /sys/firmware/acpi/tables/MSDM"
 
+# Always exec startx so Ctrl-Alt-Backspace won't lead to unlocked TTY.
+alias startx="exec \startx"
+
 # Allow custom aliases to be put in .aliases or .bash_aliases .
 
 # .aliases
diff --git a/rc/zshrc b/rc/zshrc
index b8172eae..d278519a 100644
--- a/rc/zshrc
+++ b/rc/zshrc
@@ -589,6 +589,9 @@ alias apt-builddep="apt-rdepends --build-depends --follow=DEPENDS"
 # http://superuser.com/a/638033 - get embedded Windows key
 alias winkey="xxd /sys/firmware/acpi/tables/MSDM"
 
+# Always exec startx so Ctrl-Alt-Backspace won't lead to unlocked TTY.
+alias startx="exec \startx"
+
 # Allow custom aliases to be put in .aliases or .zsh_aliases .
 
 # .aliases