diff --git a/scripts/genksyms/keywords.gperf b/scripts/genksyms/keywords.gperf
index e6349acb6f2f36994071acd1c30889f1e4a2d583..3e77a943e7b7c08af456f067a3053f21e5579883 100644
--- a/scripts/genksyms/keywords.gperf
+++ b/scripts/genksyms/keywords.gperf
@@ -1,3 +1,6 @@
+%language=ANSI-C
+%define hash-function-name is_reserved_hash
+%define lookup-function-name is_reserved_word
 %{
 struct resword;
 static const struct resword *is_reserved_word(register const char *str, register unsigned int len);