diff --git a/ngx_rtmp.h b/ngx_rtmp.h
index 9ac520a..132a9f5 100644
--- a/ngx_rtmp.h
+++ b/ngx_rtmp.h
@@ -391,21 +391,21 @@ void * ngx_rtmp_rmemcpy(void *dst, const void* src, size_t n);
     (((u_char*)ngx_rtmp_rmemcpy(dst, src, n)) + (n))
 
 
-static inline uint16_t
+static ngx_inline uint16_t
 ngx_rtmp_r16(uint16_t n)
 {
     return (n << 8) | (n >> 8);
 }
 
 
-static inline uint32_t
+static ngx_inline uint32_t
 ngx_rtmp_r32(uint32_t n)
 {
     return (n << 24) | ((n << 8) & 0xff0000) | ((n >> 8) & 0xff00) | (n >> 24);
 }
 
 
-static inline uint64_t
+static ngx_inline uint64_t
 ngx_rtmp_r64(uint64_t n)
 {
     return (uint64_t) ngx_rtmp_r32(n) << 32 | ngx_rtmp_r32(n >> 32);
@@ -557,14 +557,14 @@ ngx_int_t ngx_rtmp_send_sample_access(ngx_rtmp_session_t *s);
 #define NGX_RTMP_VIDEO_DISPOSABLE_FRAME     3
 
 
-static inline ngx_int_t
+static ngx_inline ngx_int_t
 ngx_rtmp_get_video_frame_type(ngx_chain_t *in)
 {
     return (in->buf->pos[0] & 0xf0) >> 4;
 }
 
 
-static inline ngx_int_t
+static ngx_inline ngx_int_t
 ngx_rtmp_is_codec_header(ngx_chain_t *in)
 {
     return in->buf->pos + 1 < in->buf->last && in->buf->pos[1] == 0;
diff --git a/ngx_rtmp_amf.c b/ngx_rtmp_amf.c
index fd40dc1..7e8f553 100644
--- a/ngx_rtmp_amf.c
+++ b/ngx_rtmp_amf.c
@@ -9,7 +9,8 @@
 #include "ngx_rtmp.h"
 #include <string.h>
 
-static inline void*
+
+static ngx_inline void*
 ngx_rtmp_amf_reverse_copy(void *dst, void* src, size_t len)
 {
     size_t  k;
diff --git a/ngx_rtmp_mp4_module.c b/ngx_rtmp_mp4_module.c
index 543f014..a5519f0 100644
--- a/ngx_rtmp_mp4_module.c
+++ b/ngx_rtmp_mp4_module.c
@@ -187,14 +187,14 @@ typedef struct {
     ((uint32_t)d << 24 | (uint32_t)c << 16 | (uint32_t)b << 8 | (uint32_t)a)
 
 
-static inline uint32_t
+static ngx_inline uint32_t
 ngx_rtmp_mp4_to_rtmp_timestamp(ngx_rtmp_mp4_track_t *t, uint32_t ts)
 {
     return (uint64_t) ts * 1000 / t->time_scale;
 }
 
 
-static inline uint32_t
+static ngx_inline uint32_t
 ngx_rtmp_mp4_from_rtmp_timestamp(ngx_rtmp_mp4_track_t *t, uint32_t ts)
 {
     return (uint64_t) ts * t->time_scale / 1000;