diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 171c0caef3..34825f15bf 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -115,6 +115,7 @@
 #include "user/syscall-trace.h"
 #include "qapi/error.h"
 #include "fd-trans.h"
+#include "tcg.h"
 
 #ifndef CLONE_IO
 #define CLONE_IO                0x80000000      /* Clone io context */