diff --git a/qemu/tcg/mips/tcg-target.inc.c b/qemu/tcg/mips/tcg-target.inc.c
index fd2af426..3a78d53d 100644
--- a/qemu/tcg/mips/tcg-target.inc.c
+++ b/qemu/tcg/mips/tcg-target.inc.c
@@ -36,7 +36,7 @@
 #else
 /* To assert at compile-time that these values are never used
    for TCG_TARGET_REG_BITS == 64.  */
-/* extern */ int link_error(void);
+int link_error(void);
 # define LO_OFF  link_error()
 # define HI_OFF  link_error()
 #endif