diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 3287a42d4df4..784753f0b41e 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -640,7 +640,7 @@ void x86_spec_ctrl_setup_ap(void)
 
 #ifdef CONFIG_SYSFS
 
-ssize_t cpu_show_common(struct device *dev, struct device_attribute *attr,
+static ssize_t cpu_show_common(struct device *dev, struct device_attribute *attr,
 			char *buf, unsigned int bug)
 {
 	if (!boot_cpu_has_bug(bug))