diff --git a/src/ifcgeom_schema_agnostic/Kernel.cpp b/src/ifcgeom_schema_agnostic/Kernel.cpp
index ff368d42a0..db4f310775 100644
--- a/src/ifcgeom_schema_agnostic/Kernel.cpp
+++ b/src/ifcgeom_schema_agnostic/Kernel.cpp
@@ -1,6 +1,7 @@
 #include "Kernel.h"
 
 #include <TopExp.hxx>
+#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
 
 IfcGeom::Kernel::Kernel(IfcParse::IfcFile* file) {
 	if (file != 0) {