diff --git a/runtime/filetype.vim b/runtime/filetype.vim
index fd9ba2c..0f8ac8b 100644
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -2400,6 +2400,9 @@
 au BufRead,BufNewFile *.vdmrt			setf vdmrt
 au BufRead,BufNewFile *.vdmsl,*.vdm		setf vdmsl
 
+" Vento
+au BufNewFile,BufRead *.vto			setf vento
+
 " Vera
 au BufNewFile,BufRead *.vr,*.vri,*.vrh		setf vera
 
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index ed7e6b9..94f5812 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -779,6 +779,7 @@
     vdmpp: ['file.vpp', 'file.vdmpp'],
     vdmrt: ['file.vdmrt'],
     vdmsl: ['file.vdm', 'file.vdmsl'],
+    vento: ['file.vto'],
     vera: ['file.vr', 'file.vri', 'file.vrh'],
     verilogams: ['file.va', 'file.vams'],
     vgrindefs: ['vgrindefs'],
diff --git a/src/version.c b/src/version.c
index ca4ca56..db093a7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    188,
+/**/
     187,
 /**/
     186,