diff --git a/src/ifcgeom/IfcGeomFunctions.cpp b/src/ifcgeom/IfcGeomFunctions.cpp
index d15646ce53..d0a7e663a9 100644
--- a/src/ifcgeom/IfcGeomFunctions.cpp
+++ b/src/ifcgeom/IfcGeomFunctions.cpp
@@ -1255,7 +1255,7 @@ IfcGeom::BRepElement<P>* IfcGeom::Kernel::create_brep_for_representation_and_pro
 			if (faster_booleans) {
 				bool success = convert_openings_fast(product,openings,shapes,trsf,opened_shapes);
 #if OCC_VERSION_HEX < 0x60900
-				if ( ! succes ) {
+				if (!success) {
 					opened_shapes.clear();
 					convert_openings(product,openings,shapes,trsf,opened_shapes);
 				}
@@ -2773,4 +2773,4 @@ bool IfcGeom::Kernel::boolean_operation(const TopoDS_Shape& a, const TopoDS_Shap
 	bs.Append(b);
 	return boolean_operation(a, bs, op, result, fuzziness);
 }
-#endif
\ No newline at end of file
+#endif