diff --git a/include/protocol.hpp b/include/protocol.hpp
index ffac37a..6718e55 100644
--- a/include/protocol.hpp
+++ b/include/protocol.hpp
@@ -89,6 +89,16 @@ struct composed_message : public generic_message<Type::COMPOSED_MESSAGE>
   message** messages;
 };
 
+struct vec2 
+{
+  float x,y;
+};
+
+struct vec3 
+{
+  float x,y,z;
+};
+
 struct draw_rectangle : public generic_message<Type::DRAW_RECTANGLE>
 {
   virtual ~draw_rectangle() = default;
@@ -98,9 +108,9 @@ struct draw_rectangle : public generic_message<Type::DRAW_RECTANGLE>
     return sizeof(*this);
   }
 
-  glm::vec2 position;
-  glm::vec2 size;
-  glm::vec3 color;
+  vec2 position;
+  vec2 size;
+  vec3 color;
 };
 
 struct draw_pixel : public generic_message<Type::DRAW_PIXEL>
@@ -112,8 +122,8 @@ struct draw_pixel : public generic_message<Type::DRAW_PIXEL>
     return sizeof(*this);
   }
 
-  glm::vec2 position;
-  glm::vec3 color;
+  vec2 position;
+  vec3 color;
 };
 
 uint32_t get_size(Type type)