diff --git a/after/syntax/c.vim b/after/syntax/c.vim
index 74c06a3..fcbac32 100644
--- a/after/syntax/c.vim
+++ b/after/syntax/c.vim
@@ -1,6 +1,9 @@
 " Language: C
 " Description: Additional C syntax file.
 
+" Don't syntax highlight text after #warning or #error
+syn region cPreProc start="^\s*\zs\(%:\|#\)\s*\(warning\>\|warn\>\|error\>\)" skip="\\$" end="$" keepend
+
 if !exists('c_no_function') && !exists('cpp_no_function')
   " Match function expressions: expr()
   "                             ^^^^