diff --git a/src/thermo/ThermoFactory.cpp b/src/thermo/ThermoFactory.cpp
index 8db633ff783..5a7dcd84c09 100644
--- a/src/thermo/ThermoFactory.cpp
+++ b/src/thermo/ThermoFactory.cpp
@@ -59,6 +59,7 @@ ThermoFactory::ThermoFactory()
     reg("ideal-surface", []() { return new SurfPhase(); });
     addDeprecatedAlias("ideal-surface", "Surface");
     addDeprecatedAlias("ideal-surface", "Surf");
+    reg("coverage-dependent-surface", []() { return new CoverageDependentSurfPhase(); });
     reg("edge", []() { return new EdgePhase(); });
     addDeprecatedAlias("edge", "Edge");
     reg("electron-cloud", []() { return new MetalPhase(); });