diff --git a/models/silver/abis/silver_testnet__abis.sql b/models/silver/abis/silver_testnet__abis.sql
index 5db4c80..4164491 100644
--- a/models/silver/abis/silver_testnet__abis.sql
+++ b/models/silver/abis/silver_testnet__abis.sql
@@ -65,8 +65,11 @@ user_abis AS (
 {% if is_incremental() %}
 AND _inserted_timestamp >= (
     SELECT
-        MAX(
-            _inserted_timestamp
+        COALESCE(
+            MAX(
+                _inserted_timestamp
+            ),
+            '1970-01-01'
         )
     FROM
         {{ this }}