diff --git a/runtime/syntax/fvwm2m4.vim b/runtime/syntax/fvwm2m4.vim
new file mode 100644
index 0000000..243da18
--- /dev/null
+++ b/runtime/syntax/fvwm2m4.vim
@@ -0,0 +1,43 @@
+" Vim syntax file
+" Language: FvwmM4 preprocessed Fvwm2 configuration files
+" Maintainer: David Ne\v{c}as (Yeti) <yeti@physics.muni.cz>
+" Last Change: 2002-06-02
+" URI: http://physics.muni.cz/~yeti/download/syntax/fvwmm4.vim
+
+" Setup
+if version >= 600
+  if exists('b:current_syntax')
+    finish
+  endif
+else
+  syntax clear
+endif
+
+" Let included files know they are included
+if !exists('main_syntax')
+  let main_syntax = 'fvwm2m4'
+endif
+
+" Include M4 syntax
+if version >= 600
+  runtime! syntax/m4.vim
+else
+  so <sfile>:p:h/m4.vim
+endif
+unlet b:current_syntax
+
+" Include Fvwm2 syntax (Fvwm1 doesn't have M4 preprocessor)
+if version >= 600
+  runtime! syntax/fvwm.vim
+else
+  so <sfile>:p:h/fvwm.vim
+endif
+unlet b:current_syntax
+
+" That's all!
+let b:current_syntax = 'fvwm2m4'
+
+if main_syntax == 'fvwm2m4'
+  unlet main_syntax
+endif
+