1 files changed, 6 insertions, 5 deletions

diff --git a/web/api/queries/min/min.c b/web/api/queries/min/min.c
index 4a488e9481..9bd7460e0b 100644
--- a/web/api/queries/min/min.c
+++ b/web/api/queries/min/min.c
@@ -10,7 +10,7 @@ struct grouping_min {
     size_t count;
 };
 
-void *grouping_init_min(RRDR *r) {
+void *grouping_create_min(RRDR *r) {
     (void)r;
     return callocz(1, sizeof(struct grouping_min));
 }
@@ -18,18 +18,19 @@ void *grouping_init_min(RRDR *r) {
 // resets when switches dimensions
 // so, clear everything to restart
 void grouping_reset_min(RRDR *r) {
-    struct grouping_min *g = (struct grouping_min *)r->grouping_data;
+    struct grouping_min *g = (struct grouping_min *)r->internal.grouping_data;
     g->min = 0;
     g->count = 0;
 }
 
 void grouping_free_min(RRDR *r) {
-    freez(r->grouping_data);
+    freez(r->internal.grouping_data);
+    r->internal.grouping_data = NULL;
 }
 
 void grouping_add_min(RRDR *r, calculated_number value) {
     if(!isnan(value)) {
-        struct grouping_min *g = (struct grouping_min *)r->grouping_data;
+        struct grouping_min *g = (struct grouping_min *)r->internal.grouping_data;
 
         if(!g->count || calculated_number_fabs(value) < calculated_number_fabs(g->min)) {
             g->min = value;
@@ -39,7 +40,7 @@ void grouping_add_min(RRDR *r, calculated_number value) {
 }
 
 calculated_number grouping_flush_min(RRDR *r, RRDR_VALUE_FLAGS *rrdr_value_options_ptr) {
-    struct grouping_min *g = (struct grouping_min *)r->grouping_data;
+    struct grouping_min *g = (struct grouping_min *)r->internal.grouping_data;
 
     calculated_number value;