diff --git a/src/eval.c b/src/eval.c
index efbcfaf..5c26248 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -20899,6 +20899,8 @@
 				    && (!ASCII_ISALPHA(p[2]) || p[2] == 'r'))
 			|| (p[0] == 't' && p[1] == 'c'
 				    && (!ASCII_ISALPHA(p[2]) || p[2] == 'l'))
+			|| (p[0] == 'l' && p[1] == 'u' && p[2] == 'a'
+				    && !ASCII_ISALPHA(p[3]))
 			|| (p[0] == 'r' && p[1] == 'u' && p[2] == 'b'
 				    && (!ASCII_ISALPHA(p[3]) || p[3] == 'y'))
 			|| (p[0] == 'm' && p[1] == 'z'