diff --git a/parser/H264Parser.go b/parser/H264Parser.go
index 3d116367..7bf59cd3 100644
--- a/parser/H264Parser.go
+++ b/parser/H264Parser.go
@@ -68,6 +68,7 @@ func (p *h264Parser) Stop() {
 
 // Start starts the parse func as a goroutine so that incoming data is interpreted
 func (p *h264Parser) Start() {
+	p.isParsing = true
 	go p.parse()
 }