diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 5da0da6e7cf0d1719cf9014f9e8bd45fc09341f2..a54518f2b7cbf767fec4788c5beaa6bd093b9f30 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -481,7 +481,8 @@ static const char *compat_hwcap_str[] = {
 	"idivt",
 	"vfpd32",
 	"lpae",
-	"evtstrm"
+	"evtstrm",
+	NULL
 };
 #endif /* CONFIG_COMPAT */