diff --git a/MeshLib/Node.h b/MeshLib/Node.h
index 527066b0d64044804a77353aedc7769f3483d50b..557d26bbdccc7614eebfc80fd28b0e4243c5829f 100644
--- a/MeshLib/Node.h
+++ b/MeshLib/Node.h
@@ -36,7 +36,7 @@ class Element;
 class Node : public GeoLib::PointWithID
 {
 	/* friend functions: */
-	friend static bool MeshLayerMapper::layerMapping(MeshLib::Mesh &mesh, const GeoLib::Raster &raster, double noDataReplacementValue);
+	friend bool MeshLayerMapper::layerMapping(MeshLib::Mesh &mesh, const GeoLib::Raster &raster, double noDataReplacementValue);
 	friend MeshLib::Mesh* MeshSurfaceExtraction::getMeshSurface(const MeshLib::Mesh &mesh, const MathLib::Vector3 &dir, bool keep3dMeshIds);
 
 	/* friend classes: */