diff --git a/qt/aqt/legacy.py b/qt/aqt/legacy.py
index 8c11c1d28..d13e3a8aa 100644
--- a/qt/aqt/legacy.py
+++ b/qt/aqt/legacy.py
@@ -41,6 +41,6 @@ def fmtTimeSpan(time, pad=0, point=0, short=False, inTime=False, unit=99):
 def install_pylib_legacy() -> None:
     anki.utils.bodyClass = bodyClass  # type: ignore
     anki.utils.fmtTimeSpan = fmtTimeSpan  # type: ignore
-    anki.sound._soundReg = r"\[sound:(.*?)\]"  # type: ignore
+    anki.sound._soundReg = r"\[sound:(.+?)\]"  # type: ignore
     anki.sound.allSounds = allSounds  # type: ignore
     anki.sound.stripSounds = stripSounds  # type: ignore