diff --git a/server/tiledb/tiledb.go b/server/tiledb/tiledb.go
index ea22308..62d093d 100644
--- a/server/tiledb/tiledb.go
+++ b/server/tiledb/tiledb.go
@@ -30,6 +30,10 @@ func getKey(pos *coords.TileCoords) []byte {
 	return []byte(fmt.Sprintf("%d/%d/%d/%d", pos.X, pos.Y, pos.Zoom, pos.LayerId))
 }
 
+func (this *TileDB) GC() {
+	this.db.RunValueLogGC(0.7)
+}
+
 func (this *TileDB) GetTile(pos *coords.TileCoords) ([]byte, error) {
 	var tile []byte
 	err := this.db.View(func(txn *badger.Txn) error {
diff --git a/server/tilerendererjob/incremental.go b/server/tilerendererjob/incremental.go
index 2cb9120..5f0cc6c 100644
--- a/server/tilerendererjob/incremental.go
+++ b/server/tilerendererjob/incremental.go
@@ -60,5 +60,9 @@ func incrementalRender(ctx *app.App, jobs chan *coords.TileCoords) {
 			"secondsDiff": millisDiff / 1000,
 		}
 		logrus.WithFields(fields).Info("incremental rendering")
+
+		//tile gc
+		ctx.TileDB.GC()
+
 	}
 }
diff --git a/server/tilerendererjob/initial.go b/server/tilerendererjob/initial.go
index 0caa6f7..3f97a2e 100644
--- a/server/tilerendererjob/initial.go
+++ b/server/tilerendererjob/initial.go
@@ -96,5 +96,8 @@ func initialRender(ctx *app.App, jobs chan *coords.TileCoords) {
 		}
 		logrus.WithFields(fields).Info("Initial rendering")
 
+		//tile gc
+		ctx.TileDB.GC()
+
 	}
 }