diff --git a/runtime/filetype.vim b/runtime/filetype.vim
index e14d80f..648a19d 100644
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -1526,6 +1526,9 @@
 " Scilab
 au BufNewFile,BufRead *.sci,*.sce		setf scilab
 
+" scdoc
+au BufNewFile,BufRead *.scd			setf scdoc
+
 " SCSS
 au BufNewFile,BufRead *.scss			setf scss
 
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index 4f94b96..cd40b6d 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -433,6 +433,7 @@
     \ 'scilab': ['file.sci', 'file.sce'],
     \ 'screen': ['.screenrc', 'screenrc'],
     \ 'sexplib': ['file.sexp'],
+    \ 'scdoc': ['file.scd'],
     \ 'scss': ['file.scss'],
     \ 'sd': ['file.sd'],
     \ 'sdc': ['file.sdc'],
diff --git a/src/version.c b/src/version.c
index 1b1f7a6..dfe952c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3285,
+/**/
     3284,
 /**/
     3283,