diff --git a/srcs/ft_atoll_superscript.c b/srcs/ft_atoll_superscript.c
index ce44f0b..fa455e4 100644
--- a/srcs/ft_atoll_superscript.c
+++ b/srcs/ft_atoll_superscript.c
@@ -32,8 +32,10 @@ long long ft_atoll_superscript(const char *str)
         int digit;
         if (superscript_size == 2)
         {
-            // ² (U+00B2) or ³ (U+00B3)
-            if ((uint8_t)str[i + 1] == 0xB2)
+            // ¹ (U+00B9), ² (U+00B2), or ³ (U+00B3)
+            if ((uint8_t)str[i + 1] == 0xB9)
+                digit = 1;
+            else if ((uint8_t)str[i + 1] == 0xB2)
                 digit = 2;
             else if ((uint8_t)str[i + 1] == 0xB3)
                 digit = 3;