diff --git a/src/modules/module_15500.c b/src/modules/module_15500.c
index 3c76749ec..6e714bce3 100644
--- a/src/modules/module_15500.c
+++ b/src/modules/module_15500.c
@@ -121,7 +121,7 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
   token.len_min[4] = 2;
   token.len_max[4] = 2;
   token.attr[4]    = TOKEN_ATTR_VERIFY_LENGTH
-                   | TOKEN_ATTR_VERIFY_DIGIT;
+                   | TOKEN_ATTR_VERIFY_HEX;
 
   token.sep[5]     = '*';
   token.len_min[5] = 28;