diff --git a/quesma/quesma/config/config_v2.go b/quesma/quesma/config/config_v2.go
index 571cf5682..b919153c9 100644
--- a/quesma/quesma/config/config_v2.go
+++ b/quesma/quesma/config/config_v2.go
@@ -598,7 +598,7 @@ func (c *QuesmaNewConfiguration) TranslateToLegacyConfig() QuesmaConfiguration {
 					if val, exists := target.properties["useCommonTable"]; exists {
 						processedConfig.UseCommonTable = val == "true"
 					}
-					if val, exists := target.properties["override"]; exists {
+					if val, exists := target.properties["tableName"]; exists {
 						processedConfig.Override = val.(string)
 					}
 
@@ -722,7 +722,7 @@ func (c *QuesmaNewConfiguration) TranslateToLegacyConfig() QuesmaConfiguration {
 				if val, exists := target.properties["useCommonTable"]; exists {
 					processedConfig.UseCommonTable = val == true
 				}
-				if val, exists := target.properties["override"]; exists {
+				if val, exists := target.properties["tableName"]; exists {
 					processedConfig.Override = val.(string)
 				}
 			}
@@ -771,7 +771,7 @@ func (c *QuesmaNewConfiguration) TranslateToLegacyConfig() QuesmaConfiguration {
 				if val, exists := target.properties["useCommonTable"]; exists {
 					processedConfig.UseCommonTable = val == true
 				}
-				if val, exists := target.properties["override"]; exists {
+				if val, exists := target.properties["tableName"]; exists {
 					processedConfig.Override = val.(string)
 				}
 			}
diff --git a/quesma/quesma/config/index_config.go b/quesma/quesma/config/index_config.go
index d5980cf5c..9b8b04046 100644
--- a/quesma/quesma/config/index_config.go
+++ b/quesma/quesma/config/index_config.go
@@ -16,7 +16,7 @@ const (
 type IndexConfiguration struct {
 	SchemaOverrides *SchemaConfiguration              `koanf:"schemaOverrides"`
 	Optimizers      map[string]OptimizerConfiguration `koanf:"optimizers"`
-	Override        string                            `koanf:"override"`
+	Override        string                            `koanf:"tableName"`
 	UseCommonTable  bool                              `koanf:"useCommonTable"`
 	Target          any                               `koanf:"target"`
 
diff --git a/quesma/quesma/config/test_configs/target_new_variant.yaml b/quesma/quesma/config/test_configs/target_new_variant.yaml
index 47142a43a..8f907518a 100644
--- a/quesma/quesma/config/test_configs/target_new_variant.yaml
+++ b/quesma/quesma/config/test_configs/target_new_variant.yaml
@@ -43,7 +43,7 @@ processors:
         "test_override":
           target:
             - my-clickhouse-data-source:
-                override: "new_override"
+                tableName: "new_override"
         "*":
           target: [ my-minimal-elasticsearch ]
 
@@ -65,7 +65,7 @@ processors:
         "test_override":
           target:
             - my-clickhouse-data-source:
-                override: "new_override"
+                tableName: "new_override"
         "*":
           target: [ my-minimal-elasticsearch ]
 pipelines: