diff --git a/pg_stat_monitor.c b/pg_stat_monitor.c
index 2338c06..467b2ff 100644
--- a/pg_stat_monitor.c
+++ b/pg_stat_monitor.c
@@ -2553,7 +2553,7 @@ pg_stat_monitor_internal(FunctionCallInfo fcinfo,
 		values[i++] = Float8GetDatumFast(tmp.blocks.temp_blk_write_time);
 
 		/* resp_calls at column number 49 */
-		values[i++] = IntArrayGetTextDatum(tmp.resp_calls, hist_bucket_count_total);
+		values[i++] = intarray_get_datum(tmp.resp_calls, hist_bucket_count_total);
 
 		/* cpu_user_time at column number 50 */
 		values[i++] = Float8GetDatumFast(tmp.sysinfo.utime);
diff --git a/pg_stat_monitor.h b/pg_stat_monitor.h
index 8cf5959..875e05b 100644
--- a/pg_stat_monitor.h
+++ b/pg_stat_monitor.h
@@ -62,7 +62,6 @@
 
 
 #define MAX_BACKEND_PROCESES (MaxBackends + NUM_AUXILIARY_PROCS + max_prepared_xacts)
-#define  IntArrayGetTextDatum(x,y) intarray_get_datum(x,y)
 
 /* XXX: Should USAGE_EXEC reflect execution time and/or buffer usage? */
 #define USAGE_EXEC(duration)	(1.0)