diff --git a/lang/func.c b/lang/func.c
index 2ae068a..d2d6250 100644
--- a/lang/func.c
+++ b/lang/func.c
@@ -4,7 +4,6 @@
 #include "error.h"
 #include "number.h"
 #include "object.h"
-#include "stdio.h"
 #include <stdlib.h>
 
 static struct object_class func_class;
diff --git a/lang/number.c b/lang/number.c
index 175ee5d..2bce2de 100644
--- a/lang/number.c
+++ b/lang/number.c
@@ -3,7 +3,6 @@
 
 #include "error.h"
 #include "object.h"
-#include "stdio.h"
 #include <stdlib.h>
 
 static struct object_class num_class;