diff --git a/runtime/filetype.vim b/runtime/filetype.vim
index 99ac2028e..732362d2a 100644
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -1787,7 +1787,7 @@ au BufNewFile,BufRead *.psl			setf psl
 
 " Google protocol buffers
 au BufNewFile,BufRead *.proto			setf proto
-au BufNewFile,BufRead *.pbtxt			setf pbtxt
+au BufNewFile,BufRead *.txtpb,*.textproto,*.textpb,*.pbtxt setf pbtxt
 
 " Poke
 au BufNewFile,BufRead *.pk			setf poke
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index ddcd243dd..5d42cc55e 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -522,7 +522,7 @@ def s:GetFilenameChecks(): dict<list<string>>
     papp: ['file.papp', 'file.pxml', 'file.pxsl'],
     pascal: ['file.pas', 'file.dpr', 'file.lpr'],
     passwd: ['any/etc/passwd', 'any/etc/passwd-', 'any/etc/passwd.edit', 'any/etc/shadow', 'any/etc/shadow-', 'any/etc/shadow.edit', 'any/var/backups/passwd.bak', 'any/var/backups/shadow.bak', '/etc/passwd', '/etc/passwd-', '/etc/passwd.edit', '/etc/shadow', '/etc/shadow-', '/etc/shadow.edit', '/var/backups/passwd.bak', '/var/backups/shadow.bak'],
-    pbtxt: ['file.pbtxt'],
+    pbtxt: ['file.txtpb', 'file.textproto', 'file.textpb', 'file.pbtxt'],
     pccts: ['file.g'],
     pcmk: ['file.pcmk'],
     pdf: ['file.pdf'],
diff --git a/src/version.c b/src/version.c
index 5fb7b1f82..65b5bd5b3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -704,6 +704,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    303,
 /**/
     302,
 /**/