diff --git a/syntax/c.nanorc b/syntax/c.nanorc
index ff663b5d..b4a06609 100644
--- a/syntax/c.nanorc
+++ b/syntax/c.nanorc
@@ -12,6 +12,7 @@ color brightmagenta "^[[:space:]]*[A-Z_a-z]+:[[:space:]]*$"
 
 color green "\<(float|double|bool|char|int|short|long|sizeof|enum|void|auto|static|const|restrict|struct|union|typedef|extern|(un)?signed|inline)\>"
 color green "\<([[:lower:]][[:lower:]_]*|(u_?)?int(8|16|32|64))_t\>"
+color green "\<(_(Alignas|Alignof|Atomic|Bool|Complex|Generic|Imaginary|Noreturn|Static_assert|Thread_local))\>"
 color green "\<(class|namespace|template|public|protected|private|typename|this|friend|virtual|override|using|mutable|volatile|register|explicit)\>"
 color brightyellow "\<(for|if|while|do|else|case|default|switch)\>"
 color brightyellow "\<(try|throw|catch|operator|new|delete)\>"