diff --git a/render.h b/render.h
index 5bd0b84..671e3fe 100644
--- a/render.h
+++ b/render.h
@@ -39,7 +39,7 @@ typedef struct _render_target
 /* C */
 #ifdef __cplusplus
 extern "C" {
-#endif
+#endif // __cplusplus
 
 void render_init( device* device );
 void render_draw_mesh( device* device, render_target* target, mesh* mesh, transform m );
@@ -52,9 +52,10 @@ shader* render_create_pixel_shader( device* device, const char* shader_source );
 
 #ifdef __cplusplus
 }
-#endif
+#endif // __cplusplus
 
 
+#ifdef __cplusplus
 /* C++ */
 
 class render {
@@ -70,3 +71,5 @@ class render {
 	shader* create_vertex_shader( const char* shader_source );
 	shader* create_pixel_shader( const char* shader_source );
 };
+
+#endif // __cplusplus