diff --git a/src/mapblock_mesh.cpp b/src/mapblock_mesh.cpp
index 6cbc2c52..253703dd 100644
--- a/src/mapblock_mesh.cpp
+++ b/src/mapblock_mesh.cpp
@@ -1109,18 +1109,22 @@ MapBlockMesh::MapBlockMesh(MeshMakeData *data):
 	/*
 		Convert MeshCollector to SMesh
 	*/
+	bool enable_shaders     = g_settings->getBool("enable_shaders");
 	bool enable_bumpmapping = g_settings->getBool("enable_bumpmapping");
-	bool enable_shaders = g_settings->getBool("enable_shaders");
-	video::E_MATERIAL_TYPE shadermat1 = m_gamedef->getShaderSource()->
-			getShader("test_shader_1").material;
-	video::E_MATERIAL_TYPE shadermat2 = m_gamedef->getShaderSource()->
-			getShader("test_shader_2").material;
-	video::E_MATERIAL_TYPE shadermat3 = m_gamedef->getShaderSource()->
-			getShader("test_shader_3").material;
-	video::E_MATERIAL_TYPE bumpmaps1 = m_gamedef->getShaderSource()->
-			getShader("bumpmaps_solids").material;
-	video::E_MATERIAL_TYPE bumpmaps2 = m_gamedef->getShaderSource()->
-			getShader("bumpmaps_liquids").material;
+
+	video::E_MATERIAL_TYPE  shadermat1, shadermat2, shadermat3, bumpmaps1, bumpmaps2;
+	shadermat1 = shadermat2 = shadermat3 = bumpmaps1 = bumpmaps2 = video::EMT_SOLID;
+
+	if (enable_shaders) {
+		IShaderSource *shdrsrc = m_gamedef->getShaderSource();
+		shadermat1 = shdrsrc->getShader("test_shader_1").material;
+		shadermat2 = shdrsrc->getShader("test_shader_2").material;
+		shadermat3 = shdrsrc->getShader("test_shader_3").material;
+		if (enable_bumpmapping) {
+			bumpmaps1 = shdrsrc->getShader("bumpmaps_solids").material;
+			bumpmaps2 = shdrsrc->getShader("bumpmaps_liquids").material;
+		}
+	}
 
 	for(u32 i = 0; i < collector.prebuffers.size(); i++)
 	{