diff --git a/sound/soc/sof/debug.c b/sound/soc/sof/debug.c
index 30213a1beaaa..715a374b33cf 100644
--- a/sound/soc/sof/debug.c
+++ b/sound/soc/sof/debug.c
@@ -352,7 +352,7 @@ static ssize_t sof_dfsentry_write(struct file *file, const char __user *buffer,
 	char *string;
 	int ret;
 
-	string = kzalloc(count, GFP_KERNEL);
+	string = kzalloc(count+1, GFP_KERNEL);
 	if (!string)
 		return -ENOMEM;