diff --git a/src/spatialjoin/Sweeper.cpp b/src/spatialjoin/Sweeper.cpp
index f41a516..1ad2269 100644
--- a/src/spatialjoin/Sweeper.cpp
+++ b/src/spatialjoin/Sweeper.cpp
@@ -58,6 +58,7 @@ size_t Sweeper::add(const util::geo::I32MultiPolygon& a, const std::string& gid,
     add(poly, gid, subid);
     subid++;
   }
+  _curSweepId++;
 
   if (_curSweepId % 1000000 == 0) LOGTO(INFO, std::cerr) << "@ " << _curSweepId;
   return subid;
@@ -71,6 +72,7 @@ size_t Sweeper::add(const util::geo::I32MultiLine& a, const std::string& gid,
     add(line, gid, subid);
     subid++;
   }
+  _curSweepId++;
 
   if (_curSweepId % 1000000 == 0) LOGTO(INFO, std::cerr) << "@ " << _curSweepId;
   return subid;
@@ -84,6 +86,7 @@ size_t Sweeper::add(const util::geo::I32MultiPoint& a, const std::string& gid,
     add(point, gid, subid);
     subid++;
   }
+  _curSweepId++;
 
   if (_curSweepId % 1000000 == 0) LOGTO(INFO, std::cerr) << "@ " << _curSweepId;
   return subid;