1 files changed, 8 insertions, 2 deletions
diff --git a/internal.h b/internal.h
index 994b208..1e2733a 100644
--- a/internal.h
+++ b/internal.h
@@ -79,13 +79,15 @@
   case '8': \
   case '9':
 
-#define CASE_HEX_ALPHA_CHARS \
+#define CASE_HEX_LC_ALPHA_CHARS \
   case 'a': \
   case 'b': \
   case 'c': \
   case 'd': \
   case 'e': \
-  case 'f': \
+  case 'f':
+
+#define CASE_HEX_UC_ALPHA_CHARS \
   case 'A': \
   case 'B': \
   case 'C': \
@@ -93,6 +95,10 @@
   case 'E': \
   case 'F':
 
+#define CASE_HEX_ALPHA_CHARS \
+  CASE_HEX_LC_ALPHA_CHARS \
+  CASE_HEX_UC_ALPHA_CHARS \
+
 //
 // rfc7230, Appendix B
 // https://tools.ietf.org/html/rfc7230