diff --git a/[refs] b/[refs]
index 2819faddca0f..a27a224aacc5 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e99d11d19977c74b18411cdb59cdebb788237a6e
+refs/heads/master: 020e773f6b2e797a13d23723773ed1b3ba2c35dc
diff --git a/trunk/scripts/kconfig/symbol.c b/trunk/scripts/kconfig/symbol.c
index c0efe102d655..af6e9f3de950 100644
--- a/trunk/scripts/kconfig/symbol.c
+++ b/trunk/scripts/kconfig/symbol.c
@@ -875,7 +875,7 @@ const char *sym_expand_string_value(const char *in)
 			symval = sym_get_string_value(sym);
 		}
 
-		newlen = strlen(res) + strlen(symval) + strlen(src);
+		newlen = strlen(res) + strlen(symval) + strlen(src) + 1;
 		if (newlen > reslen) {
 			reslen = newlen;
 			res = realloc(res, reslen);