diff --git a/libs/ardour/luabindings.cc b/libs/ardour/luabindings.cc
index 6b74ffb7da..877b1101a8 100644
--- a/libs/ardour/luabindings.cc
+++ b/libs/ardour/luabindings.cc
@@ -3019,6 +3019,7 @@ LuaBindings::common (lua_State* L)
 		.addFunction ("run", &DSP::Biquad::run)
 		.addFunction ("compute", &DSP::Biquad::compute)
 		.addFunction ("configure", (void (DSP::Biquad::*) (DSP::Biquad const&))&DSP::Biquad::configure)
+		.addFunction ("set_coefficients", (void (DSP::Biquad::*) (double, double, double, double, double))&DSP::Biquad::configure)
 		.addFunction ("reset", &DSP::Biquad::reset)
 		.addFunction ("dB_at_freq", &DSP::Biquad::dB_at_freq)
 		.endClass ()