2 files changed, 10 insertions, 1 deletions

diff --git a/src/linda.cpp b/src/linda.cpp
index a9ae61c..fa28385 100644
--- a/src/linda.cpp
+++ b/src/linda.cpp
@@ -1178,7 +1178,15 @@ LUAG_FUNC(linda)
         if (lua_isnil(L_, kIdxTop)) {
             lua_pop(L_, 1);
             lua_pushnumber(L_, _U->lindaWakePeriod.count());
-        } else {
+        } else if (luaG_type(L_, kIdxTop) == LuaType::STRING) {
+            if (luaG_tostring(L_, kIdxTop) != "never") {
+                luaL_argerror(L_, 1, "invalid wake_period");
+            } else {
+                lua_pop(L_, 1);
+                lua_pushnumber(L_, 0);
+            }
+        }
+        else {
             luaL_argcheck(L_, luaL_optnumber(L_, 2, 0) > 0, 1, "wake_period must be > 0");
         }
 
diff --git a/src/macros_and_utils.hpp b/src/macros_and_utils.hpp
index 16011f7..1aca818 100644
--- a/src/macros_and_utils.hpp
+++ b/src/macros_and_utils.hpp
@@ -21,6 +21,7 @@ inline void STACK_GROW(lua_State* const L_, int const n_)
 
 // #################################################################################################
 
+// 1 unit of lua_Duration lasts 1 second (using default period of std::ratio<1>)
 using lua_Duration = std::chrono::template duration<lua_Number>;
 
 // #################################################################################################