diff --git a/kernel/printk/printk_ringbuffer.c b/kernel/printk/printk_ringbuffer.c
index 2493348a1631..24a960a89aa8 100644
--- a/kernel/printk/printk_ringbuffer.c
+++ b/kernel/printk/printk_ringbuffer.c
@@ -1125,7 +1125,10 @@ static char *data_realloc(struct printk_ringbuffer *rb,
 
 	/* If the data block does not increase, there is nothing to do. */
 	if (head_lpos - next_lpos < DATA_SIZE(data_ring)) {
-		blk = to_block(data_ring, blk_lpos->begin);
+		if (wrapped)
+			blk = to_block(data_ring, 0);
+		else
+			blk = to_block(data_ring, blk_lpos->begin);
 		return &blk->data[0];
 	}