diff --git a/deps/hiredis/sds.h b/deps/hiredis/sds.h
index 404f246c4..6b46297c2 100644
--- a/deps/hiredis/sds.h
+++ b/deps/hiredis/sds.h
@@ -83,7 +83,7 @@ struct __attribute__ ((__packed__)) sdshdr64 {
 #define SDS_HDR(T,s) ((struct sdshdr##T *)((s)-(sizeof(struct sdshdr##T))))
 #define SDS_TYPE_5_LEN(f) ((f)>>SDS_TYPE_BITS)
 
-inline size_t sdslen(const sds s) {
+static inline size_t sdslen(const sds s) {
     unsigned char flags = s[-1];
     
     switch(__builtin_expect((flags&SDS_TYPE_MASK), SDS_TYPE_5)) {