diff --git a/arch/x86/boot/compressed/sev.c b/arch/x86/boot/compressed/sev.c
index dc8c876fbd8f..ba4868f416e4 100644
--- a/arch/x86/boot/compressed/sev.c
+++ b/arch/x86/boot/compressed/sev.c
@@ -25,7 +25,7 @@
 #include "error.h"
 #include "../msr.h"
 
-struct ghcb boot_ghcb_page __aligned(PAGE_SIZE);
+static struct ghcb boot_ghcb_page __aligned(PAGE_SIZE);
 struct ghcb *boot_ghcb;
 
 /*