diff --git a/src/client.cpp b/src/client.cpp
index 38ce54bdc..17661d0c1 100644
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -434,7 +434,7 @@ void Client::step(float dtime)
 	const float map_timer_and_unload_dtime = 5.25;
 	if(m_map_timer_and_unload_interval.step(dtime, map_timer_and_unload_dtime)) {
 		ScopeProfiler sp(g_profiler, "Client: map timer and unload");
-		std::list<v3s16> deleted_blocks;
+		std::vector<v3s16> deleted_blocks;
 		m_env.getMap().timerUpdate(map_timer_and_unload_dtime,
 				g_settings->getFloat("client_unload_unused_data_timeout"),
 				&deleted_blocks);
@@ -444,8 +444,8 @@ void Client::step(float dtime)
 			NOTE: This loop is intentionally iterated the way it is.
 		*/
 
-		std::list<v3s16>::iterator i = deleted_blocks.begin();
-		std::list<v3s16> sendlist;
+		std::vector<v3s16>::iterator i = deleted_blocks.begin();
+		std::vector<v3s16> sendlist;
 		for(;;) {
 			if(sendlist.size() == 255 || i == deleted_blocks.end()) {
 				if(sendlist.empty())
@@ -462,7 +462,7 @@ void Client::step(float dtime)
 				*pkt << (u8) sendlist.size();
 
 				u32 k = 0;
-				for(std::list<v3s16>::iterator
+				for(std::vector<v3s16>::iterator
 						j = sendlist.begin();
 						j != sendlist.end(); ++j) {
 					*pkt << *j;
diff --git a/src/map.cpp b/src/map.cpp
index cfad92e3e..191b05ed5 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -1421,7 +1421,7 @@ bool Map::getDayNightDiff(v3s16 blockpos)
 	Updates usage timers
 */
 void Map::timerUpdate(float dtime, float unload_timeout,
-		std::list<v3s16> *unloaded_blocks)
+		std::vector<v3s16> *unloaded_blocks)
 {
 	bool save_before_unloading = (mapType() == MAPTYPE_SERVER);
 
@@ -1435,8 +1435,7 @@ void Map::timerUpdate(float dtime, float unload_timeout,
 
 	beginSave();
 	for(std::map<v2s16, MapSector*>::iterator si = m_sectors.begin();
-		si != m_sectors.end(); ++si)
-	{
+		si != m_sectors.end(); ++si) {
 		MapSector *sector = si->second;
 
 		bool all_blocks_deleted = true;
@@ -1506,7 +1505,7 @@ void Map::timerUpdate(float dtime, float unload_timeout,
 	}
 }
 
-void Map::unloadUnreferencedBlocks(std::list<v3s16> *unloaded_blocks)
+void Map::unloadUnreferencedBlocks(std::vector<v3s16> *unloaded_blocks)
 {
 	timerUpdate(0.0, -1.0, unloaded_blocks);
 }
diff --git a/src/map.h b/src/map.h
index e2736d560..f4ea54f30 100644
--- a/src/map.h
+++ b/src/map.h
@@ -277,13 +277,13 @@ public:
 		Saves modified blocks before unloading on MAPTYPE_SERVER.
 	*/
 	void timerUpdate(float dtime, float unload_timeout,
-			std::list<v3s16> *unloaded_blocks=NULL);
+			std::vector<v3s16> *unloaded_blocks=NULL);
 
 	/*
 		Unloads all blocks with a zero refCount().
 		Saves modified blocks before unloading on MAPTYPE_SERVER.
 	*/
-	void unloadUnreferencedBlocks(std::list<v3s16> *unloaded_blocks=NULL);
+	void unloadUnreferencedBlocks(std::vector<v3s16> *unloaded_blocks=NULL);
 
 	// Deletes sectors and their blocks from memory
 	// Takes cache into account