diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index b8d5116d7371..fdb82658b1a1 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -823,7 +823,7 @@ void __init setup_arch(char **cmdline_p)
 #endif
 #ifdef CONFIG_KEXEC
 	if (crashk_res.start != crashk_res.end) {
-		reserve_bootmem(crashk_res.start,
+		reserve_bootmem_generic(crashk_res.start,
 			crashk_res.end - crashk_res.start + 1);
 	}
 #endif