diff --git a/sqlite-vec.c b/sqlite-vec.c
index 2b05b8a..d98a852 100644
--- a/sqlite-vec.c
+++ b/sqlite-vec.c
@@ -6672,6 +6672,7 @@ int vec0Update_Insert(sqlite3_vtab *pVTab, int argc, sqlite3_value **argv,
     }
     int partition_key_idx = p->user_column_idxs[i];
     partitionKeyValues[partition_key_idx] = argv[2+VEC0_COLUMN_USERN_START + i];
+
     int new_value_type = sqlite3_value_type(partitionKeyValues[partition_key_idx]);
     if((new_value_type != SQLITE_NULL) && (new_value_type != p->paritition_columns[partition_key_idx].type)) {
       // IMP: V11454_28292
@@ -6683,6 +6684,8 @@ int vec0Update_Insert(sqlite3_vtab *pVTab, int argc, sqlite3_value **argv,
         type_name(p->paritition_columns[partition_key_idx].type),
         type_name(new_value_type)
       );
+      rc = SQLITE_ERROR;
+      goto cleanup;
     }
   }