diff --git a/pkg/proof/querier.go b/pkg/proof/querier.go
index 92798ed6bc..9350a6139e 100644
--- a/pkg/proof/querier.go
+++ b/pkg/proof/querier.go
@@ -133,7 +133,7 @@ func ParseNamespace(rawShares []shares.Share, startShare, endShare int) (appns.N
 		return appns.Namespace{}, fmt.Errorf("end share %d cannot be lower than starting share %d", endShare, startShare)
 	}
 
-	if endShare >= len(rawShares) {
+	if endShare > len(rawShares) {
 		return appns.Namespace{}, fmt.Errorf("end share %d is higher than block shares %d", endShare, len(rawShares))
 	}