diff --git a/src/dot.cpp b/src/dot.cpp
index b62a53651fc..55e34df8c0e 100644
--- a/src/dot.cpp
+++ b/src/dot.cpp
@@ -1093,7 +1093,11 @@ bool DotFilePatcher::run()
         Map *map = m_maps.at(mapId);
         //printf("patching FIG %d in file %s with contents of %s\n",
         //   mapId,m_patchFile.data(),map->mapFile.data());
-        writeVecGfxFigure(t,map->label,map->mapFile);
+        if (!writeVecGfxFigure(t,map->label,map->mapFile))
+        {
+          err("problem writing Gfx %d figure!\n",t);
+          return FALSE;
+        }
       }
       else // error invalid map id!
       {