diff --git a/sources/main.cpp b/sources/main.cpp
index 09538b3..3419eb5 100755
--- a/sources/main.cpp
+++ b/sources/main.cpp
@@ -143,12 +143,24 @@
       this->setNormal();
       col->setColor();
       for (int v = 0; v < 3; v++) {
-		glVertex3f (scale * p[v]->x, scale * p[v]->y, scale * p[v]->z);
+		glVertex3f(scale * p[v]->x, scale * p[v]->y, scale * p[v]->z);
       }
 	glEnd();
+	this->drawNormals();
     this->print();
   }
 
+  void drawNormals() {
+	for (int v = 0; v < 3; v++) {
+	  glBegin (GL_LINES);
+	  glVertex3f(scale * p[v]->x, scale * p[v]->y, scale * p[v]->z);
+	  glVertex3f(scale * p[v]->x + this->normal->x,
+				 scale * p[v]->y + this->normal->y,
+				 scale * p[v]->z + this->normal->z);
+	  glEnd();
+	}	  
+  }
+
   void setNormal() {
     glNormal3f(this->normal->x, this->normal->y, this->normal->z);	
   }