diff --git a/src/ifcconvert/IfcConvert.cpp b/src/ifcconvert/IfcConvert.cpp
index bd0c9110a2..4425539492 100644
--- a/src/ifcconvert/IfcConvert.cpp
+++ b/src/ifcconvert/IfcConvert.cpp
@@ -290,7 +290,7 @@ int main(int argc, char** argv) {
 	po::options_description geom_options("Geometry options");
 	geom_options.add_options()
 		("kernel", po::value<std::string>(&geometry_kernel)->default_value(default_kernel),
-			"Geometry kernel to use (opencascade, cgal, cgal-simple).")
+			"Geometry kernel to use (opencascade, cgal, cgal-simple, hybrid-cgal-simple-opencascade).")
 		("threads,j", po::value<int>(&num_threads)->default_value(1),
 			"Number of parallel processing threads for geometry interpretation.")
 		("center-model",