diff --git a/bin/tagpreview.sh b/bin/tagpreview.sh
index 01bfa30..0be6687 100755
--- a/bin/tagpreview.sh
+++ b/bin/tagpreview.sh
@@ -30,12 +30,14 @@ else
   exit 1
 fi
 
-# The address comes from a tags file, which can be untrusted, and a preview
-# runs as soon as an entry is highlighted. Sandboxed as a builtin tag jump is,
-# so that it cannot run a shell command or touch a file
-CENTER="$("${VIMNAME}" -R -i NONE -u NONE -e -m -s "${FILE}" \
+# The address comes from a tags file, which can be untrusted, and a preview runs
+# as soon as an entry is highlighted. Sandboxed as a builtin tag jump is, so that
+# it cannot run a shell command or touch a file. ':sandbox' on its own only
+# covers the command up to the first '|', hence 'sandbox execute' on a value
+# passed through the environment, which keeps the whole address inside
+CENTER="$(FZFVIM_EXCMD="${EXCMD}" "${VIMNAME}" -R -i NONE -u NONE -e -m -s "${FILE}" \
               -c "set nomagic" \
-              -c "silent sandbox ${EXCMD}" \
+              -c 'silent sandbox execute $FZFVIM_EXCMD' \
               -c 'let l=line(".") | new | put =l | print | qa!')" || exit
 
 START_LINE="$(( CENTER - FZF_PREVIEW_LINES / 2 ))"