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-rw-r--r--consensus/clique/clique.go2
1 files changed, 1 insertions, 1 deletions
diff --git a/consensus/clique/clique.go b/consensus/clique/clique.go
index 547290984..0ff72e55c 100644
--- a/consensus/clique/clique.go
+++ b/consensus/clique/clique.go
@@ -388,7 +388,7 @@ func (c *Clique) snapshot(chain consensus.ChainReader, number uint64, hash commo
}
}
// If we're at an checkpoint block, make a snapshot if it's known
- if number%c.config.Epoch == 0 {
+ if number == 0 || (number%c.config.Epoch == 0 && chain.GetHeaderByNumber(number-1) == nil) {
checkpoint := chain.GetHeaderByNumber(number)
if checkpoint != nil {
hash := checkpoint.Hash()