diff --git a/node/pkg/processor/broadcast.go b/node/pkg/processor/broadcast.go
index b5d8bb91..52ade756 100644
--- a/node/pkg/processor/broadcast.go
+++ b/node/pkg/processor/broadcast.go
@@ -57,6 +57,7 @@ func (p *Processor) broadcastSignature(v *vaa.VAA, signature []byte, txhash []by
 
 	p.state.vaaSignatures[hash].ourVAA = v
 	p.state.vaaSignatures[hash].ourMsg = msg
+	p.state.vaaSignatures[hash].source = v.EmitterChain.String()
 	p.state.vaaSignatures[hash].gs = p.gs // guaranteed to match ourVAA - there's no concurrent access to p.gs
 
 	// Fast path for our own signature