diff --git a/src/extrude_surface.cpp b/src/extrude_surface.cpp
index e1f6eeb3..2efec4f4 100644
--- a/src/extrude_surface.cpp
+++ b/src/extrude_surface.cpp
@@ -55,7 +55,6 @@
 
 using namespace LAMMPS_NS;
 
-#define POLYDATA
 /* ---------------------------------------------------------------------- */
 
 ExtrudeSurface::ExtrudeSurface(LAMMPS *lmp) : Pointers(lmp)