diff --git a/vim/after/syntax/c.vim b/vim/after/syntax/c.vim
index 77b7292..1b4a2e6 100644
--- a/vim/after/syntax/c.vim
+++ b/vim/after/syntax/c.vim
@@ -3,3 +3,4 @@ syn keyword cType u8 u16 u32 u64
 syn keyword cType s8 s16 s32 s64
 syn keyword cType i8 i16 i32 i64
 syn keyword cType f32 f64
+syn keyword cConditional elif