diff --git a/misc/lastools/files/patch-src_las2txt.cpp b/misc/lastools/files/patch-src_las2txt.cpp
new file mode 100644
index 000000000000..e72050fae2ce
--- /dev/null
+++ b/misc/lastools/files/patch-src_las2txt.cpp
@@ -0,0 +1,11 @@
+--- src/las2txt.cpp.orig	2025-01-19 14:35:25 UTC
++++ src/las2txt.cpp
+@@ -570,7 +570,7 @@ static void parse_extended_flags(char *parse_string)
+ static void parse_extended_flags(char *parse_string)
+ {
+   const char *extended_flags[] = {"(HSV)", "(HSL)", "(hsv)", "(hsl)"};
+-  const char replacement_codes[] = {HSV255, HSL255, HSV, HSL};
++  const signed char replacement_codes[] = {HSV255, HSL255, HSV, HSL};
+   I32 nflags = (I32)(sizeof(extended_flags) / sizeof(char*));
+ 
+   for (I32 i = 0; i < nflags; i++)