diff --git a/skel/.bashrc b/skel/.bashrc
index ac1f51e..8534e1c 100644
--- a/skel/.bashrc
+++ b/skel/.bashrc
@@ -115,3 +115,8 @@ if ! shopt -oq posix; then
     . /etc/bash_completion
   fi
 fi
+
+# set GPG TTY
+if [ "$GPG_TTY" = "" ]; then
+  export GPG_TTY=$(tty)
+fi
diff --git a/skel/.zshrc b/skel/.zshrc
index 04e87b3..dc7c0ec 100644
--- a/skel/.zshrc
+++ b/skel/.zshrc
@@ -71,3 +71,8 @@ SAVEHIST=$HISTSIZE
 setopt BANG_HIST                 # Treat the '!' character specially during expansion.
 setopt HIST_BEEP                 # Beep when accessing nonexistent history.
 setopt HIST_LEX_WORDS            # parse quotes when parsing history
+
+# set GPG_TTY
+if [ "$GPG_TTY" = "" ]; then
+	export GPG_TTY=$(tty)
+fi