1 files changed, 1 insertions, 2 deletions
diff --git a/source/luametatex/source/utilities/auxunistring.c b/source/luametatex/source/utilities/auxunistring.c
index 10ae6393d..9fe5531d6 100644
--- a/source/luametatex/source/utilities/auxunistring.c
+++ b/source/luametatex/source/utilities/auxunistring.c
@@ -135,10 +135,9 @@ unsigned aux_splitutf2uni(unsigned int *ubuf, const char *utf8buf)
 
 size_t aux_utf8len(const char *text, size_t size)
 {
-    size_t ls = size;
     size_t ind = 0;
     size_t num = 0;
-    while (ind < ls) {
+    while (ind < size) {
         unsigned char i = (unsigned char) *(text + ind);
         if (i < 0x80) {
             ind += 1;