diff --git a/scene/2d/canvas_item.cpp b/scene/2d/canvas_item.cpp
index 0ea2e85dfa5..698bbf41ead 100644
--- a/scene/2d/canvas_item.cpp
+++ b/scene/2d/canvas_item.cpp
@@ -42,7 +42,7 @@
 #include "servers/visual_server.h"
 
 Mutex *CanvasItemMaterial::material_mutex = NULL;
-SelfList<CanvasItemMaterial>::List CanvasItemMaterial::dirty_materials;
+SelfList<CanvasItemMaterial>::List *CanvasItemMaterial::dirty_materials = NULL;
 Map<CanvasItemMaterial::MaterialKey, CanvasItemMaterial::ShaderData> CanvasItemMaterial::shader_map;
 CanvasItemMaterial::ShaderNames *CanvasItemMaterial::shader_names = NULL;
 
@@ -52,6 +52,8 @@ void CanvasItemMaterial::init_shaders() {
 	material_mutex = Mutex::create();
 #endif
 
+	dirty_materials = memnew(SelfList<CanvasItemMaterial>::List);
+
 	shader_names = memnew(ShaderNames);
 
 	shader_names->particles_anim_h_frames = "particles_anim_h_frames";
@@ -61,6 +63,9 @@ void CanvasItemMaterial::init_shaders() {
 
 void CanvasItemMaterial::finish_shaders() {
 
+	memdelete(dirty_materials);
+	dirty_materials = NULL;
+
 #ifndef NO_THREADS
 	memdelete(material_mutex);
 #endif
@@ -68,7 +73,7 @@ void CanvasItemMaterial::finish_shaders() {
 
 void CanvasItemMaterial::_update_shader() {
 
-	dirty_materials.remove(&element);
+	dirty_materials->remove(&element);
 
 	MaterialKey mk = _compute_key();
 	if (mk.key == current_key.key)
@@ -157,9 +162,9 @@ void CanvasItemMaterial::flush_changes() {
 	if (material_mutex)
 		material_mutex->lock();
 
-	while (dirty_materials.first()) {
+	while (dirty_materials->first()) {
 
-		dirty_materials.first()->self()->_update_shader();
+		dirty_materials->first()->self()->_update_shader();
 	}
 
 	if (material_mutex)
@@ -172,7 +177,7 @@ void CanvasItemMaterial::_queue_shader_change() {
 		material_mutex->lock();
 
 	if (!element.in_list()) {
-		dirty_materials.add(&element);
+		dirty_materials->add(&element);
 	}
 
 	if (material_mutex)
diff --git a/scene/2d/canvas_item.h b/scene/2d/canvas_item.h
index 9fe7cb1e00b..1a6016e6e10 100644
--- a/scene/2d/canvas_item.h
+++ b/scene/2d/canvas_item.h
@@ -109,7 +109,7 @@ private:
 	}
 
 	static Mutex *material_mutex;
-	static SelfList<CanvasItemMaterial>::List dirty_materials;
+	static SelfList<CanvasItemMaterial>::List *dirty_materials;
 	SelfList<CanvasItemMaterial> element;
 
 	void _update_shader();
diff --git a/scene/resources/material.cpp b/scene/resources/material.cpp
index 5327ed318ff..65ee242ff89 100644
--- a/scene/resources/material.cpp
+++ b/scene/resources/material.cpp
@@ -258,7 +258,7 @@ ShaderMaterial::~ShaderMaterial() {
 /////////////////////////////////
 
 Mutex *SpatialMaterial::material_mutex = NULL;
-SelfList<SpatialMaterial>::List SpatialMaterial::dirty_materials;
+SelfList<SpatialMaterial>::List *SpatialMaterial::dirty_materials = NULL;
 Map<SpatialMaterial::MaterialKey, SpatialMaterial::ShaderData> SpatialMaterial::shader_map;
 SpatialMaterial::ShaderNames *SpatialMaterial::shader_names = NULL;
 
@@ -268,6 +268,8 @@ void SpatialMaterial::init_shaders() {
 	material_mutex = Mutex::create();
 #endif
 
+	dirty_materials = memnew(SelfList<SpatialMaterial>::List);
+
 	shader_names = memnew(ShaderNames);
 
 	shader_names->albedo = "albedo";
@@ -348,12 +350,15 @@ void SpatialMaterial::finish_shaders() {
 	memdelete(material_mutex);
 #endif
 
+	memdelete(dirty_materials);
+	dirty_materials = NULL;
+
 	memdelete(shader_names);
 }
 
 void SpatialMaterial::_update_shader() {
 
-	dirty_materials.remove(&element);
+	dirty_materials->remove(&element);
 
 	MaterialKey mk = _compute_key();
 	if (mk.key == current_key.key)
@@ -1002,9 +1007,9 @@ void SpatialMaterial::flush_changes() {
 	if (material_mutex)
 		material_mutex->lock();
 
-	while (dirty_materials.first()) {
+	while (dirty_materials->first()) {
 
-		dirty_materials.first()->self()->_update_shader();
+		dirty_materials->first()->self()->_update_shader();
 	}
 
 	if (material_mutex)
@@ -1017,7 +1022,7 @@ void SpatialMaterial::_queue_shader_change() {
 		material_mutex->lock();
 
 	if (!element.in_list()) {
-		dirty_materials.add(&element);
+		dirty_materials->add(&element);
 	}
 
 	if (material_mutex)
diff --git a/scene/resources/material.h b/scene/resources/material.h
index 54fceaddc12..921f3baeaa6 100644
--- a/scene/resources/material.h
+++ b/scene/resources/material.h
@@ -360,7 +360,7 @@ private:
 	};
 
 	static Mutex *material_mutex;
-	static SelfList<SpatialMaterial>::List dirty_materials;
+	static SelfList<SpatialMaterial>::List *dirty_materials;
 	static ShaderNames *shader_names;
 
 	SelfList<SpatialMaterial> element;
diff --git a/scene/resources/particles_material.cpp b/scene/resources/particles_material.cpp
index dae01e8d965..92c185712ab 100644
--- a/scene/resources/particles_material.cpp
+++ b/scene/resources/particles_material.cpp
@@ -31,7 +31,7 @@
 #include "particles_material.h"
 
 Mutex *ParticlesMaterial::material_mutex = NULL;
-SelfList<ParticlesMaterial>::List ParticlesMaterial::dirty_materials;
+SelfList<ParticlesMaterial>::List *ParticlesMaterial::dirty_materials = NULL;
 Map<ParticlesMaterial::MaterialKey, ParticlesMaterial::ShaderData> ParticlesMaterial::shader_map;
 ParticlesMaterial::ShaderNames *ParticlesMaterial::shader_names = NULL;
 
@@ -41,6 +41,8 @@ void ParticlesMaterial::init_shaders() {
 	material_mutex = Mutex::create();
 #endif
 
+	dirty_materials = memnew(SelfList<ParticlesMaterial>::List);
+
 	shader_names = memnew(ShaderNames);
 
 	shader_names->spread = "spread";
@@ -106,12 +108,15 @@ void ParticlesMaterial::finish_shaders() {
 	memdelete(material_mutex);
 #endif
 
+	memdelete(dirty_materials);
+	dirty_materials = NULL;
+
 	memdelete(shader_names);
 }
 
 void ParticlesMaterial::_update_shader() {
 
-	dirty_materials.remove(&element);
+	dirty_materials->remove(&element);
 
 	MaterialKey mk = _compute_key();
 	if (mk.key == current_key.key)
@@ -584,9 +589,9 @@ void ParticlesMaterial::flush_changes() {
 	if (material_mutex)
 		material_mutex->lock();
 
-	while (dirty_materials.first()) {
+	while (dirty_materials->first()) {
 
-		dirty_materials.first()->self()->_update_shader();
+		dirty_materials->first()->self()->_update_shader();
 	}
 
 	if (material_mutex)
@@ -599,7 +604,7 @@ void ParticlesMaterial::_queue_shader_change() {
 		material_mutex->lock();
 
 	if (!element.in_list()) {
-		dirty_materials.add(&element);
+		dirty_materials->add(&element);
 	}
 
 	if (material_mutex)
diff --git a/scene/resources/particles_material.h b/scene/resources/particles_material.h
index 06ebb3c4dca..20b505532e7 100644
--- a/scene/resources/particles_material.h
+++ b/scene/resources/particles_material.h
@@ -126,7 +126,7 @@ private:
 	}
 
 	static Mutex *material_mutex;
-	static SelfList<ParticlesMaterial>::List dirty_materials;
+	static SelfList<ParticlesMaterial>::List *dirty_materials;
 
 	struct ShaderNames {
 		StringName spread;