diff --git a/src/modules/sdlog2/logbuffer.c b/src/modules/sdlog2/logbuffer.c
index 02172b4154..c856aaa7d3 100644
--- a/src/modules/sdlog2/logbuffer.c
+++ b/src/modules/sdlog2/logbuffer.c
@@ -148,5 +148,8 @@ void logbuffer_free(struct logbuffer_s *lb)
 {
 	if (lb->data) {
 		free(lb->data);
+		lb->write_ptr = 0;
+		lb->read_ptr = 0;
+		lb->data = NULL;
 	}
 }