diff --git a/hoot-core/src/main/cpp/hoot/core/visitors/poi-polygon/PoiPolygonMatchVisitor.h b/hoot-core/src/main/cpp/hoot/core/visitors/poi-polygon/PoiPolygonMatchVisitor.h
index 09d1a7f..1a6edb6 100644
--- a/hoot-core/src/main/cpp/hoot/core/visitors/poi-polygon/PoiPolygonMatchVisitor.h
+++ b/hoot-core/src/main/cpp/hoot/core/visitors/poi-polygon/PoiPolygonMatchVisitor.h
@@ -103,6 +103,7 @@ private:
long _numElementsVisited;
long _numMatchCandidatesVisited;
int _taskStatusUpdateInterval;
+ int _memoryCheckUpdateInterval;
PoiPolygonPoiCriterion _poiCrit;
PoiPolygonPolyCriterion _polyCrit;