diff --git a/src/Extension/H264.h b/src/Extension/H264.h
index df14031d..394752ec 100644
--- a/src/Extension/H264.h
+++ b/src/Extension/H264.h
@@ -390,7 +390,7 @@ public:
         _printer << "m=video 0 RTP/AVP " << playload_type << "\r\n";
         _printer << "b=AS:" << bitrate << "\r\n";
         _printer << "a=rtpmap:" << playload_type << " H264/" << 90000 << "\r\n";
-        _printer << "a=fmtp:" << playload_type << " packetization-mode=1;profile-level-id=";
+        _printer << "a=fmtp:" << playload_type << " packetization-mode=1; profile-level-id=";
 
         char strTemp[100];
         uint32_t profile_level_id = 0;
@@ -402,7 +402,7 @@ public:
         memset(strTemp, 0, 100);
         sprintf(strTemp, "%06X", profile_level_id);
         _printer << strTemp;
-        _printer << ";sprop-parameter-sets=";
+        _printer << "; sprop-parameter-sets=";
         memset(strTemp, 0, 100);
         av_base64_encode(strTemp, 100, (uint8_t *) strSPS.data(), strSPS.size());
         _printer << strTemp << ",";