diff --git a/source/features/italic.fea b/source/features/italic.fea
index 5c31f23..9901236 100644
--- a/source/features/italic.fea
+++ b/source/features/italic.fea
@@ -31,7 +31,7 @@
 @y = [Y y];
 @z = [Z z];
 @zero = [zero zero.zero];
-@escape = [backslash slash @Digit b B c d D f k n p P r s S t u w W v x dollar period asterisk asciitilde question bar quotesingle quotedbl bracketleft bracketright parenleft parenright braceleft braceright];
+@escape = [backslash slash @Digit b B c d D f k n p P r s S t u w W v x dollar period asterisk asciitilde question bar quotesingle quotedbl bracketleft bracketright parenleft parenright braceleft braceright grave];
 @a_l = [a_l.liga a_l.liga.cv02 a_l.liga.cv04 a_l.liga.cv02.cv04 a_l.liga.ss01 a_l.liga.cv02.ss01];
 #/< otclasses
 #< classes
diff --git a/source/features/regular.fea b/source/features/regular.fea
index 2297a3d..109f29e 100644
--- a/source/features/regular.fea
+++ b/source/features/regular.fea
@@ -32,7 +32,7 @@
 @x = [X x];
 @y = [Y y];
 @z = [Z z];
-@escape = [backslash slash @Digit b B c d D f k n p P r s S t u w W v x dollar period asterisk asciitilde question bar quotesingle quotedbl bracketleft bracketright parenleft parenright braceleft braceright];
+@escape = [backslash slash @Digit b B c d D f k n p P r s S t u w W v x dollar period asterisk asciitilde question bar quotesingle quotedbl bracketleft bracketright parenleft parenright braceleft braceright grave];
 #/< otclasses
 #< classes