diff --git a/libmpdemux/demux_avi.c b/libmpdemux/demux_avi.c
index 0d5e59078c..fea37e5062 100644
--- a/libmpdemux/demux_avi.c
+++ b/libmpdemux/demux_avi.c
@@ -553,7 +553,9 @@ static demuxer_t* demux_open_avi(demuxer_t* demuxer){
 	asamples+=(len+priv->audio_block_size-1)/priv->audio_block_size;
       }
     }
-    mp_msg(MSGT_DEMUX,MSGL_V,"AVI video size=%"PRId64" (%u) audio size=%"PRId64" (%u)\n",vsize,vsamples,asize,asamples);
+    mp_msg(MSGT_DEMUX, MSGL_V,
+           "AVI video size=%"PRId64" (%zu) audio size=%"PRId64" (%zu)\n",
+           vsize, vsamples, asize, asamples);
     priv->numberofframes=vsamples;
     sh_video->i_bps=((float)vsize/(float)vsamples)*(float)sh_video->video.dwRate/(float)sh_video->video.dwScale;
     if(sh_audio) sh_audio->i_bps=((float)asize/(float)asamples)*(float)sh_audio->audio.dwRate/(float)sh_audio->audio.dwScale;
diff --git a/libmpdemux/demux_lmlm4.c b/libmpdemux/demux_lmlm4.c
index 46bb167ef1..7f95e36de0 100644
--- a/libmpdemux/demux_lmlm4.c
+++ b/libmpdemux/demux_lmlm4.c
@@ -71,7 +71,9 @@ static int imeHeaderValid(FrameInfo *frame)
     if ( frame->channelNo > 7 ||
          frame->frameSize > MAX_PACKET_SIZE || frame->frameSize <= 0)
     {
-        mp_msg(MSGT_DEMUX, MSGL_V, "Invalid packet in LMLM4 stream: ch=%d size=%d\n", frame->channelNo, frame->frameSize);
+        mp_msg(MSGT_DEMUX, MSGL_V,
+               "Invalid packet in LMLM4 stream: ch=%d size=%zd\n",
+               frame->channelNo, frame->frameSize);
         return 0;
     }
     switch (frame->frameType) {
@@ -155,7 +157,7 @@ static int getFrame(demuxer_t *demuxer, FrameInfo *frameInfo)
     frameInfo->frameSize = packetSize - 8; //sizeof(IME6400Header);
     frameInfo->paddingSize = (packetSize & PACKET_BLOCK_LAST) ? PACKET_BLOCK_SIZE - (packetSize & PACKET_BLOCK_LAST) : 0;
 
-    mp_msg(MSGT_DEMUX, MSGL_DBG2, "typ: %d chan: %d size: %d pad: %d\n",
+    mp_msg(MSGT_DEMUX, MSGL_DBG2, "typ: %d chan: %d size: %zd pad: %zd\n",
             frameInfo->frameType,
             frameInfo->channelNo,
             frameInfo->frameSize,
diff --git a/stream/asf_streaming.c b/stream/asf_streaming.c
index 94563ef0f1..c50d373cab 100644
--- a/stream/asf_streaming.c
+++ b/stream/asf_streaming.c
@@ -672,7 +672,7 @@ static int asf_http_parse_response(asf_http_streaming_ctrl_t *asf_http_ctrl, HTT
 				  len = (unsigned int)(end-pragma);
 				}
 				if(len > sizeof(features) - 1) {
-				  mp_tmsg(MSGT_NETWORK,MSGL_WARN,"ASF HTTP PARSE WARNING : Pragma %s cut from %d bytes to %d\n",pragma,len,sizeof(features) - 1);
+				  mp_tmsg(MSGT_NETWORK,MSGL_WARN,"ASF HTTP PARSE WARNING : Pragma %s cut from %zd bytes to %d\n",pragma,len,sizeof(features) - 1);
 				  len = sizeof(features) - 1;
 				}
 				strncpy( features, pragma, len );
diff --git a/stream/http.c b/stream/http.c
index dda668e5f4..5523622f8f 100644
--- a/stream/http.c
+++ b/stream/http.c
@@ -672,7 +672,7 @@ http_debug_hdr( HTTP_header_t *http_hdr ) {
 	mp_msg(MSGT_NETWORK,MSGL_V,"method:             [%s]\n", http_hdr->method );
 	mp_msg(MSGT_NETWORK,MSGL_V,"status code:        [%d]\n", http_hdr->status_code );
 	mp_msg(MSGT_NETWORK,MSGL_V,"reason phrase:      [%s]\n", http_hdr->reason_phrase );
-	mp_msg(MSGT_NETWORK,MSGL_V,"body size:          [%d]\n", http_hdr->body_size );
+	mp_msg(MSGT_NETWORK,MSGL_V,"body size:          [%zd]\n", http_hdr->body_size );
 
 	mp_msg(MSGT_NETWORK,MSGL_V,"Fields:\n");
 	field = http_hdr->first_field;