diff --git a/proposals/XXXX-matrixRTC-call-decline-realtions.svg b/proposals/4310-matrixRTC-call-decline-realtions.svg
similarity index 100%
rename from proposals/XXXX-matrixRTC-call-decline-realtions.svg
rename to proposals/4310-matrixRTC-call-decline-realtions.svg
diff --git a/proposals/XXXX-matrixRTC-call-decline.md b/proposals/4310-matrixRTC-call-decline.md
similarity index 98%
rename from proposals/XXXX-matrixRTC-call-decline.md
rename to proposals/4310-matrixRTC-call-decline.md
index 4552192bb..7f575c3c6 100644
--- a/proposals/XXXX-matrixRTC-call-decline.md
+++ b/proposals/4310-matrixRTC-call-decline.md
@@ -1,4 +1,4 @@
-# MSXXXX: MatrixRTC decline `m.rtc.notify`
+# MSC4310: MatrixRTC decline `m.rtc.notify`
 
 MatrixRTC is the base layer that defines how devices participate in a call. For the specific
 usecase of a voice/video call we need additional signalling (outside of MatrixRTC) to provide