diff --git a/dotfiles/shrc b/dotfiles/shrc
index bbc559a..dbb827c 100644
--- a/dotfiles/shrc
+++ b/dotfiles/shrc
@@ -71,7 +71,7 @@ if command -v calendar >/dev/null && [ -f ~/.calendar/calendar ]; then
calendar
fi
-if [ -s ~/.shrc.local ]; then
+if [ -r ~/.shrc.local ]; then
. ~/.shrc.local
fi
diff --git a/mblaze/env b/mblaze/env
index 32fa470..6a7574c 100644
--- a/mblaze/env
+++ b/mblaze/env
@@ -1,5 +1,5 @@
# mblaze.env
-# Written in 2020 by Lucas
+# Written in 2020,2023 by Lucas
# CC0 1.0 Universal/Public domain - No rights reserved
#
# To the extent possible under law, the author(s) have dedicated all
@@ -45,7 +45,7 @@ MCOLOR_QUOTE=3
export MCOLOR_SEP MCOLOR_FROM MCOLOR_HEADER MCOLOR_FOOTER MCOLOR_SIG
export MCOLOR_QQQUOTE MCOLOR_QQUOTE MCOLOR_QUOTE
-if [ -f "$MBLAZE/private.env" ]; then
+if [ -r "$MBLAZE/private.env" ]; then
. "$MBLAZE/private.env"
fi
diff --git a/xdg-config-dir/herbstluftwm/autostart b/xdg-config-dir/herbstluftwm/autostart
index 632f1c5..66255b7 100755
--- a/xdg-config-dir/herbstluftwm/autostart
+++ b/xdg-config-dir/herbstluftwm/autostart
@@ -1,6 +1,6 @@
#!/bin/sh
# env
-# Written in 2019-2020,2022 by Lucas
+# Written in 2019-2020,2022-2023 by Lucas
# CC0 1.0 Universal/Public domain - No rights reserved
#
# To the extent possible under law, the author(s) have dedicated all
@@ -10,7 +10,7 @@
# Dedication along with this software. If not, see
# .
-if [ -f ~/.config/herbstluftwm/theme ]; then
+if [ -r ~/.config/herbstluftwm/theme ]; then
. ~/.config/herbstluftwm/theme
fi
diff --git a/xdg-config-dir/herbstluftwm/herbstpanel.sh b/xdg-config-dir/herbstluftwm/herbstpanel.sh
index 9aa1eaf..8e36109 100644
--- a/xdg-config-dir/herbstluftwm/herbstpanel.sh
+++ b/xdg-config-dir/herbstluftwm/herbstpanel.sh
@@ -1,6 +1,6 @@
#!/bin/sh
# env
-# Written in 2019-2020 by Lucas
+# Written in 2019-2020,2023 by Lucas
# CC0 1.0 Universal/Public domain - No rights reserved
#
# To the extent possible under law, the author(s) have dedicated all
@@ -10,7 +10,7 @@
# Dedication along with this software. If not, see
# .
-if [ -f ~/.config/herbstluftwm/theme ]; then
+if [ -r ~/.config/herbstluftwm/theme ]; then
. ~/.config/herbstluftwm/theme
fi