diff --git a/generate.sh b/generate.sh
index 8af5c0fd..644d214f 100755
--- a/generate.sh
+++ b/generate.sh
@@ -13,7 +13,7 @@ export PATH=/opt/.protoc/bin:$PWD/.protoc/bin:$PATH
 # The coreutils installed with Homebrew (as mentioned in README)
 # installs GNU realpath which could be available as "grealpath"
 # which actually works. Hence, the option to customize REALPATH
-REALPATH=${REALPATH:-realpath}
+REALPATH=${REALPATH:-grealpath}
 
 GEN_PROFILE=${1:-go}
 
diff --git a/protobuf/video/sfu/models/models.proto b/protobuf/video/sfu/models/models.proto
index 904f7c05..4f50e653 100644
--- a/protobuf/video/sfu/models/models.proto
+++ b/protobuf/video/sfu/models/models.proto
@@ -110,9 +110,9 @@ message VideoLayer {
 
 
 message Codec {
-  string mime_type = 1;
-  string scalability_mode = 2;
-  string fmtp = 3;
+  string mime_type = 10;
+  string scalability_mode = 11;
+  string fmtp = 12;
 }
 
 message ICETrickle {