diff --git a/vochain/indexer/db/blocks.sql.go b/vochain/indexer/db/blocks.sql.go
index f9cb75888..dfb269c6d 100644
--- a/vochain/indexer/db/blocks.sql.go
+++ b/vochain/indexer/db/blocks.sql.go
@@ -91,7 +91,7 @@ WHERE (
         OR (LENGTH(?2) < 64 AND INSTR(LOWER(HEX(hash)), LOWER(?2)) > 0)
         -- TODO: consider keeping an hash_hex column for faster searches
     )
-    AND (?3 = 0 OR LOWER(HEX(proposer_address)) = LOWER(?3))
+    AND (?3 = '' OR LOWER(HEX(proposer_address)) = LOWER(?3))
 )
 ORDER BY height DESC
 LIMIT ?5