diff --git a/pgxn/neon/pagestore_smgr.c b/pgxn/neon/pagestore_smgr.c
index d55d3fa464..984f8d8edc 100644
--- a/pgxn/neon/pagestore_smgr.c
+++ b/pgxn/neon/pagestore_smgr.c
@@ -1605,7 +1605,7 @@ neon_write(SMgrRelation reln, ForkNumber forknum, BlockNumber blocknum, const vo
 	XLogRecPtr	lsn;
 	RelKindEntry *entry;
 	bool unlogged;
-	uint8 flags;
+	uint8 flags = 0;
 
 	switch (reln->smgr_relpersistence)
 	{
@@ -1695,7 +1695,7 @@ neon_writev(SMgrRelation reln, ForkNumber forknum, BlockNumber blkno,
 {
 	RelKindEntry *entry;
 	bool unlogged;
-	uint8 flags;
+	uint8 flags = 0;
 
 	switch (reln->smgr_relpersistence)
 	{