diff --git a/libs/ardour/luabindings.cc b/libs/ardour/luabindings.cc
index c1ead0dc4a..0990538060 100644
--- a/libs/ardour/luabindings.cc
+++ b/libs/ardour/luabindings.cc
@@ -610,6 +610,7 @@ LuaBindings::common (lua_State* L)
 		.addConstructor <void (*) (Temporal::samplepos_t)> ()
 		.addOperator ("__add", CPPOPERATOR(Temporal::timecnt_t, +))
 		.addOperator ("__sub", CPPOPERATOR(Temporal::timecnt_t, -))
+		.addOperator ("__mod", CPPOPERATOR(Temporal::timecnt_t, %))
 		.addOperator ("__mul", CPPOPERATOR2(Temporal::timecnt_t, Temporal::timecnt_t, Temporal::ratio_t , *))
 		.addOperator ("__div", CPPOPERATOR2(Temporal::timecnt_t, Temporal::timecnt_t, Temporal::ratio_t , /))
 		.addOperator ("__lt", CPPCOMPERATOR(Temporal::timecnt_t, <))