diff --git a/Sample/HardParticle/IFormFactorPolyhedron.cpp b/Sample/HardParticle/IFormFactorPolyhedron.cpp
index 46a0aa913e2dffbcff2d033f0e429646b00d6cef..c4327983ce05c65cf5c0af4bafc2390f236c3e76 100644
--- a/Sample/HardParticle/IFormFactorPolyhedron.cpp
+++ b/Sample/HardParticle/IFormFactorPolyhedron.cpp
@@ -20,7 +20,6 @@
 #include "Base/Util/Assert.h"
 #include "Sample/Particle/PolyhedralUtil.h"
 #include <ff/Face.h>
-
 #include <ff/Polyhedron.h>
 
 // #ifdef ALGORITHM_DIAGNOSTIC // TODO restore