diff --git a/src/files/WorldFiles.cpp b/src/files/WorldFiles.cpp
index f1c9291a..e08ddb18 100644
--- a/src/files/WorldFiles.cpp
+++ b/src/files/WorldFiles.cpp
@@ -227,13 +227,13 @@ void WorldFiles::writeWorldInfo(const WorldInfo& info) {
 
 bool WorldFiles::readWorldInfo(WorldInfo& info) {
 	size_t length = 0;
-	ubyte* data = (ubyte*)files::read_bytes(getPlayerFile(), length);
+	ubyte* data = (ubyte*)files::read_bytes(getWorldFile(), length);
 	if (data == nullptr){
 		std::cerr << "could not to read world.bin (ignored)" << std::endl;
 		return false;
 	}
 	BinaryReader inp(data, length);
-	inp.checkMagic(WORLD_FORMAT_MAGIC, length);
+	inp.checkMagic(WORLD_FORMAT_MAGIC, 8);
 	/*ubyte version = */inp.get();
 	while (inp.hasNext()) {
 		ubyte section = inp.get();
diff --git a/src/files/binary_io.cpp b/src/files/binary_io.cpp
index 1abd5469..0fb18b3b 100644
--- a/src/files/binary_io.cpp
+++ b/src/files/binary_io.cpp
@@ -128,7 +128,7 @@ float BinaryReader::getFloat32() {
 
 string BinaryReader::getString() {
     uint16_t length = (uint16_t)getInt16();
-    if (pos+length >= size) {
+    if (pos+length > size) {
         throw std::underflow_error("unexpected end");
     }
     pos += length;
diff --git a/src/frontend/world_render.cpp b/src/frontend/world_render.cpp
index 3e053622..29ac9fba 100644
--- a/src/frontend/world_render.cpp
+++ b/src/frontend/world_render.cpp
@@ -143,25 +143,25 @@ void WorldRenderer::draw(Camera* camera, bool occlusion, float fogFactor, float
 	}
 
 	if (level->player->debug) {
-		float lenght = 40.f;
+		float length = 40.f;
 
 		linesShader->use();
 		glm::mat4 model(glm::translate(glm::mat4(1.f), vec3(Window::width >> 1, -static_cast<int>(Window::height) >> 1, 0.f)));
-		linesShader->uniformMatrix("u_projview", glm::ortho(0.f, static_cast<float>(Window::width), -static_cast<float>(Window::height), 0.f, -lenght, lenght) * model * glm::inverse(camera->rotation));
+		linesShader->uniformMatrix("u_projview", glm::ortho(0.f, static_cast<float>(Window::width), -static_cast<float>(Window::height), 0.f, -length, length) * model * glm::inverse(camera->rotation));
 
 		glDisable(GL_DEPTH_TEST);
 
 		glLineWidth(4.0f);
-		lineBatch->line(0.f, 0.f, 0.f, lenght, 0.f, 0.f, 0.f, 0.f, 0.f, 1.f);
-		lineBatch->line(0.f, 0.f, 0.f, 0.f, lenght, 0.f, 0.f, 0.f, 0.f, 1.f);
-		lineBatch->line(0.f, 0.f, 0.f, 0.f, 0.f, lenght, 0.f, 0.f, 0.f, 1.f);
+		lineBatch->line(0.f, 0.f, 0.f, length, 0.f, 0.f, 0.f, 0.f, 0.f, 1.f);
+		lineBatch->line(0.f, 0.f, 0.f, 0.f, length, 0.f, 0.f, 0.f, 0.f, 1.f);
+		lineBatch->line(0.f, 0.f, 0.f, 0.f, 0.f, length, 0.f, 0.f, 0.f, 1.f);
 		lineBatch->render();
 		glEnable(GL_DEPTH_TEST);
 
 		glLineWidth(2.0f);
-		lineBatch->line(0.f, 0.f, 0.f, lenght, 0.f, 0.f, 1.f, 0.f, 0.f, 1.f);
-		lineBatch->line(0.f, 0.f, 0.f, 0.f, lenght, 0.f, 0.f, 1.f, 0.f, 1.f);
-		lineBatch->line(0.f, 0.f, 0.f, 0.f, 0.f, lenght, 0.f, 0.f, 1.f, 1.f);
+		lineBatch->line(0.f, 0.f, 0.f, length, 0.f, 0.f, 1.f, 0.f, 0.f, 1.f);
+		lineBatch->line(0.f, 0.f, 0.f, 0.f, length, 0.f, 0.f, 1.f, 0.f, 1.f);
+		lineBatch->line(0.f, 0.f, 0.f, 0.f, 0.f, length, 0.f, 0.f, 1.f, 1.f);
 		lineBatch->render();
 	}
 }