diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index ae1a97dd0c3c..f6e1e154d9c1 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -457,7 +457,7 @@ static u32 clear_idx;
 /* record buffer */
 #define LOG_ALIGN __alignof__(struct printk_log)
 #define __LOG_BUF_LEN (1 << CONFIG_LOG_BUF_SHIFT)
-#define LOG_BUF_LEN_MAX (u32)(1 << 31)
+#define LOG_BUF_LEN_MAX ((u32)1 << 31)
 static char __log_buf[__LOG_BUF_LEN] __aligned(LOG_ALIGN);
 static char *log_buf = __log_buf;
 static u32 log_buf_len = __LOG_BUF_LEN;