diff --git a/core/src/main/java/com/sciencesakura/dbsetup/csv/Import.java b/core/src/main/java/com/sciencesakura/dbsetup/csv/Import.java
index b9952dc..15b4f9e 100644
--- a/core/src/main/java/com/sciencesakura/dbsetup/csv/Import.java
+++ b/core/src/main/java/com/sciencesakura/dbsetup/csv/Import.java
@@ -85,7 +85,6 @@ public static Builder csv(@NotNull String location) {
 
     private static CSVFormat createFormat(Builder builder) {
         CSVFormat.Builder fb = CSVFormat.Builder.create(CSVFormat.DEFAULT)
-            .setAllowDuplicateHeaderNames(false)
             .setDelimiter(builder.delimiter)
             .setNullString(builder.nullString)
             .setQuote(builder.quote)