diff --git a/runtime/compiler/gcc.vim b/runtime/compiler/gcc.vim
index c6c0e3f..987a3a6 100644
--- a/runtime/compiler/gcc.vim
+++ b/runtime/compiler/gcc.vim
@@ -9,7 +9,7 @@
 let current_compiler = "gcc"
 
 let s:cpo_save = &cpo
-set cpo-=C
+set cpo&vim
 
 CompilerSet errorformat=
       \%*[^\"]\"%f\"%*\\D%l:%c:\ %m,
diff --git a/runtime/compiler/rst.vim b/runtime/compiler/rst.vim
index 07c7d41..15d2d79 100644
--- a/runtime/compiler/rst.vim
+++ b/runtime/compiler/rst.vim
@@ -9,7 +9,7 @@
 let current_compiler = "rst"
 
 let s:cpo_save = &cpo
-set cpo-=C
+set cpo&vim
 
 setlocal errorformat=
       \%f:%l:\ (%tEBUG/0)\ %m,