diff --git a/vlib/v/gen/c/cheaders.v b/vlib/v/gen/c/cheaders.v
index 787a0e886a..47ca63cf58 100644
--- a/vlib/v/gen/c/cheaders.v
+++ b/vlib/v/gen/c/cheaders.v
@@ -553,16 +553,11 @@ voidptr memdup(voidptr src, int sz);
 	#error Cygwin is not supported, please use MinGW or Visual Studio.
 #endif
 
-#if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__DragonFly__) || defined(__vinix__) || defined(__serenity__) || defined(__sun)
+#if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__DragonFly__) || defined(__vinix__) || defined(__serenity__) || defined(__sun) || defined(__plan9__)
 	#include <sys/types.h>
 	#include <sys/wait.h> // os__wait uses wait on nix
 #endif
 
-#if defined(__plan9__)
-	#include <u.h>
-	#include <libc.h>
-#endif
-
 #ifdef __OpenBSD__
 	#include <sys/types.h>
 	#include <sys/resource.h>