diff --git a/test/lexer.t.cpp b/test/lexer.t.cpp
index 4207e2917..5635e032d 100644
--- a/test/lexer.t.cpp
+++ b/test/lexer.t.cpp
@@ -37,7 +37,7 @@ Context context;
 ////////////////////////////////////////////////////////////////////////////////
 int main (int argc, char** argv)
 {
-  UnitTest t (1088);
+  UnitTest t (1100);
 
   std::vector <std::pair <std::string, Lexer::Type>> tokens;
   std::string token;
@@ -379,6 +379,8 @@ int main (int argc, char** argv)
     { "ordinary",                                     { { "ordinary",                                     Lexer::Type::dom          }, NO, NO, NO, NO }, },
 
     // UUID
+    { "ffffffff-ffff-ffff-ffff-ffffffffffff",         { { "ffffffff-ffff-ffff-ffff-ffffffffffff",         Lexer::Type::uuid         }, NO, NO, NO, NO }, },
+    { "00000000-0000-0000-0000-000000000000",         { { "00000000-0000-0000-0000-000000000000",         Lexer::Type::uuid         }, NO, NO, NO, NO }, },
     { "a360fc44-315c-4366-b70c-ea7e7520b749",         { { "a360fc44-315c-4366-b70c-ea7e7520b749",         Lexer::Type::uuid         }, NO, NO, NO, NO }, },
     { "a360fc44-315c-4366-b70c-ea7e752",              { { "a360fc44-315c-4366-b70c-ea7e752",              Lexer::Type::uuid         }, NO, NO, NO, NO }, },
     { "a360fc44-315c-4366-b70c",                      { { "a360fc44-315c-4366-b70c",                      Lexer::Type::uuid         }, NO, NO, NO, NO }, },