diff --git a/includes/learnopengl/mesh.h b/includes/learnopengl/mesh.h
index d6f7ee9..8203041 100644
--- a/includes/learnopengl/mesh.h
+++ b/includes/learnopengl/mesh.h
@@ -69,15 +69,15 @@ public:
             string number;
             string name = textures[i].type;
             if(name == "texture_diffuse")
-				number = std::to_string(diffuseNr++);
-			else if(name == "texture_specular")
-				number = std::to_string(specularNr++); // transfer unsigned int to stream
+                number = std::to_string(diffuseNr++);
+            else if(name == "texture_specular")
+                number = std::to_string(specularNr++); // transfer unsigned int to stream
             else if(name == "texture_normal")
-				number = std::to_string(normalNr++); // transfer unsigned int to stream
+                number = std::to_string(normalNr++); // transfer unsigned int to stream
              else if(name == "texture_height")
-			    number = std::to_string(heightNr++); // transfer unsigned int to stream
+                number = std::to_string(heightNr++); // transfer unsigned int to stream
 
-													 // now set the sampler to the correct texture unit
+            // now set the sampler to the correct texture unit
             glUniform1i(glGetUniformLocation(shader.ID, (name + number).c_str()), i);
             // and finally bind the texture
             glBindTexture(GL_TEXTURE_2D, textures[i].id);