diff -Naur lib3ds-1.3.0.orig/lib3ds/mesh.c lib3ds-1.3.0/lib3ds/mesh.c
--- lib3ds-1.3.0.orig/lib3ds/mesh.c	2007-06-20 19:04:08.000000000 +0200
+++ lib3ds-1.3.0/lib3ds/mesh.c	2010-09-14 06:34:39.987807911 +0200
@@ -87,8 +87,11 @@
             faces=lib3ds_io_read_word(io);
             for (i=0; i<faces; ++i) {
               index=lib3ds_io_read_word(io);
-              ASSERT(index<mesh->faces);
-              strcpy(mesh->faceL[index].material, name);
+              if (index<mesh->faces) {
+                strncpy(mesh->faceL[index].material, name, 64);
+              } else {
+                // TODO warning
+              }
             }
           }
           break;