diff --git a/services/booth/scripts/booth b/services/booth/scripts/booth
index 2054634..8bb97ed 100755
--- a/services/booth/scripts/booth
+++ b/services/booth/scripts/booth
@@ -184,7 +184,7 @@ case "$cmd" in
     esac
     # `|| exit 1` so a failure is reported rather than swallowed; `set -e` inside
     # a command substitution elsewhere in this script has bitten us already.
-    BOOTH_SRC="$(cd "$(dirname -- "$0")/.." && pwd)" python3 -c '
+    BOOTH_SRC="$(cd "$(dirname -- "$(readlink -f -- "$0")")/.." && pwd)" python3 -c '
 import os, pathlib, sys
 sys.path.insert(0, os.environ["BOOTH_SRC"])
 from booth.links import remove_link_entry  # stdlib only — no venv needed
@@ -205,7 +205,7 @@ print("removed: %s  %s" % (removed["desc"], removed["url"]))
     [ "${#opts[@]}" -ge 2 ] || { echo "an ask needs at least 2 options" >&2; exit 1; }
     # Validated through the SAME normaliser the page uses, so a session cannot
     # post a question the renderer would refuse. stdlib only — no venv needed.
-    BOOTH_SRC="$(cd "$(dirname -- "$0")/.." && pwd)" ASK_NOTES="$notes" python3 -c '
+    BOOTH_SRC="$(cd "$(dirname -- "$(readlink -f -- "$0")")/.." && pwd)" ASK_NOTES="$notes" python3 -c '
 import os, pathlib, sys
 sys.path.insert(0, os.environ["BOOTH_SRC"])
 from booth.asks import AskError, write_ask
@@ -219,7 +219,7 @@ except AskError as exc:
     ;;
   asks)
     [ $# -ge 1 ] || usage
-    BOOTH_SRC="$(cd "$(dirname -- "$0")/.." && pwd)" python3 -c '
+    BOOTH_SRC="$(cd "$(dirname -- "$(readlink -f -- "$0")")/.." && pwd)" python3 -c '
 import os, pathlib, sys
 sys.path.insert(0, os.environ["BOOTH_SRC"])
 from booth.asks import list_asks