diff --git a/proposals/xxxx-matrixrtc-m-call.md b/proposals/4196-matrixrtc-m-call.md
similarity index 65%
rename from proposals/xxxx-matrixrtc-m-call.md
rename to proposals/4196-matrixrtc-m-call.md
index 1549ff8f0..238be2f9a 100644
--- a/proposals/xxxx-matrixrtc-m-call.md
+++ b/proposals/4196-matrixrtc-m-call.md
@@ -1,4 +1,4 @@
-# MSC0000: MatrixRTC voice and video conferencing application `m.call`
+# MSC4196: MatrixRTC voice and video conferencing application `m.call`
 
 ## Proposal