diff --git a/src/tools/core/grid_stat/grid_stat_conf_info.cc b/src/tools/core/grid_stat/grid_stat_conf_info.cc
index a049ceeab2..c29579e710 100644
--- a/src/tools/core/grid_stat/grid_stat_conf_info.cc
+++ b/src/tools/core/grid_stat/grid_stat_conf_info.cc
@@ -746,7 +746,7 @@ void GridStatVxOpt::process_config(
    }
 
    // Store in map
-   for(int i=0; mpr_sa.n(); i++) {
+   for(int i=0; i<mpr_sa.n(); i++) {
       if(mpr_thr_inc_map.count(mpr_sa[i]) == 0) {
          ThreshArray ta;
          mpr_thr_inc_map[(mpr_sa[i])] = ta;
diff --git a/src/tools/core/pair_stat/pair_stat_conf_info.cc b/src/tools/core/pair_stat/pair_stat_conf_info.cc
index 853dd76d6e..2f47ddfe99 100644
--- a/src/tools/core/pair_stat/pair_stat_conf_info.cc
+++ b/src/tools/core/pair_stat/pair_stat_conf_info.cc
@@ -762,7 +762,7 @@ void PairStatVxOpt::process_config(PairsFormat ftype,
    }
 
    // Store in map
-   for(int i=0; mpr_sa.n(); i++) {
+   for(int i=0; i<mpr_sa.n(); i++) {
       if(mpr_thr_inc_map.count(mpr_sa[i]) == 0) {
          ThreshArray ta;
          mpr_thr_inc_map[(mpr_sa[i])] = ta;
diff --git a/src/tools/core/point_stat/point_stat_conf_info.cc b/src/tools/core/point_stat/point_stat_conf_info.cc
index c083d2fe4d..f5b89dad4f 100644
--- a/src/tools/core/point_stat/point_stat_conf_info.cc
+++ b/src/tools/core/point_stat/point_stat_conf_info.cc
@@ -931,7 +931,7 @@ void PointStatVxOpt::process_config(GrdFileType ftype,
    }
 
    // Store in map
-   for(int i=0; mpr_sa.n(); i++) {
+   for(int i=0; i<mpr_sa.n(); i++) {
       if(mpr_thr_inc_map.count(mpr_sa[i]) == 0) {
          ThreshArray ta;
          mpr_thr_inc_map[(mpr_sa[i])] = ta;