diff --git a/tsdb/db.go b/tsdb/db.go
index dc94806df..efd579f3a 100644
--- a/tsdb/db.go
+++ b/tsdb/db.go
@@ -22,7 +22,6 @@ import (
 	"math"
 	"os"
 	"path/filepath"
-	"runtime"
 	"sort"
 	"strconv"
 	"strings"
@@ -875,7 +874,6 @@ func (db *DB) compactHead(head *RangeHead) error {
 		return errors.Wrap(err, "persist head block")
 	}
 
-	runtime.GC()
 	if err := db.reloadBlocks(); err != nil {
 		if errRemoveAll := os.RemoveAll(filepath.Join(db.dir, uid.String())); errRemoveAll != nil {
 			return tsdb_errors.NewMulti(
@@ -888,7 +886,6 @@ func (db *DB) compactHead(head *RangeHead) error {
 	if err = db.head.truncateMemory(head.BlockMaxTime()); err != nil {
 		return errors.Wrap(err, "head memory truncate")
 	}
-	runtime.GC()
 	return nil
 }
 
@@ -915,7 +912,6 @@ func (db *DB) compactBlocks() (err error) {
 		if err != nil {
 			return errors.Wrapf(err, "compact %s", plan)
 		}
-		runtime.GC()
 
 		if err := db.reloadBlocks(); err != nil {
 			if err := os.RemoveAll(filepath.Join(db.dir, uid.String())); err != nil {
@@ -923,7 +919,6 @@ func (db *DB) compactBlocks() (err error) {
 			}
 			return errors.Wrap(err, "reloadBlocks blocks")
 		}
-		runtime.GC()
 	}
 
 	return nil