diff --git a/st-copyout b/st-copyout
index e40fedd..1438e2c 100755
--- a/st-copyout
+++ b/st-copyout
@@ -6,7 +6,7 @@
 tmpfile=$(mktemp /tmp/st-cmd-output.XXXXXX)
 trap 'rm "$tmpfile"' 0 1 15
 sed -n "w $tmpfile"
-ps1="$(grep "\S" "$tmpfile" | tail -n 1 | cut -d' ' -f1)"
+ps1="$(grep "\S" "$tmpfile" | tail -n 1 | sed 's/^\s*//' | cut -d' ' -f1)"
 chosen="$(grep -F "$ps1" "$tmpfile" | sed '$ d' | tac | dmenu -p "Copy which command's output?" -i -l 10 | sed 's/[^^]/[&]/g; s/\^/\\^/g')"
 eps1="$(echo "$ps1" | sed 's/[^^]/[&]/g; s/\^/\\^/g')"
 awk "/^$chosen$/{p=1;print;next} p&&/^$eps1/{p=0};p" "$tmpfile" | xclip -selection clipboard