diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 801a16a..fb0f9b7 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -15,8 +15,17 @@
 #include <stdio.h>
 #include <ctype.h>
 #include "modpost.h"
+#include "../../include/linux/autoconf.h"
 #include "../../include/linux/license.h"
 
+/* Some toolchains use a `_' prefix for all user symbols. */
+#ifdef CONFIG_SYMBOL_PREFIX
+#define MODULE_SYMBOL_PREFIX CONFIG_SYMBOL_PREFIX
+#else
+#define MODULE_SYMBOL_PREFIX ""
+#endif
+
+
 /* Are we using CONFIG_MODVERSIONS? */
 int modversions = 0;
 /* Warn about undefined symbols? (do so if we have vmlinux) */