diff --git a/src/query/inc/qHistogram.h b/src/query/inc/qHistogram.h
index 7742d151a06456a8b3c10e8b1f0aeba6203a28b7..3b5c2b4cfb9bac638c7d86988f8ac14d7419f83c 100644
--- a/src/query/inc/qHistogram.h
+++ b/src/query/inc/qHistogram.h
@@ -40,7 +40,7 @@ typedef struct SHeapEntry {
 } SHeapEntry;
 
 typedef struct SHistogramInfo {
-  int32_t numOfElems;
+  int64_t numOfElems;
   int32_t numOfEntries;
   int32_t maxEntries;
   double min;
diff --git a/src/query/src/qHistogram.c b/src/query/src/qHistogram.c
index ae25a752347edc4f7c53aade845716d637f9edd7..5fa35d0ee586e72401bca1d984006c39e2e84e98 100644
--- a/src/query/src/qHistogram.c
+++ b/src/query/src/qHistogram.c
@@ -446,7 +446,7 @@ void tHistogramDestroy(SHistogramInfo** pHisto) {
 }
 
 void tHistogramPrint(SHistogramInfo* pHisto) {
-  printf("total entries: %d, elements: %d\n", pHisto->numOfEntries, pHisto->numOfElems);
+  printf("total entries: %d, elements: %"PRId64 "\n", pHisto->numOfEntries, pHisto->numOfElems);
 #if defined(USE_ARRAYLIST)
   for (int32_t i = 0; i < pHisto->numOfEntries; ++i) {
     printf("%d: (%f, %" PRId64 ")\n", i + 1, pHisto->elems[i].val, pHisto->elems[i].num);