--- /dev/null
+\version "2.14.0"
+
+\header {
+ texidoc="
+If @code{includeGraceNotes} is enabled, lyric extenders work as
+expected also for syllables starting under grace notes.
+"
+}
+
+\relative c' {
+ c2 \grace { c16([ d e f] } g2)
+ f1
+}
+\addlyrics {
+ \set includeGraceNotes = ##t
+ _ Ah __ fa
+}