diff --git a/src/research.c b/src/research.c
index 138e393..7b058f4 100644
--- a/src/research.c
+++ b/src/research.c
@@ -7,9 +7,6 @@
  ** thus probably not very efficient   **
  ****************************************/
 
-#include <stdio.h>
-#include "game.h"
-
 int reserach (void) {
 
 // horizontal research