diff --git a/htdocs/install/mysql/data/llx_c_units.sql b/htdocs/install/mysql/data/llx_c_units.sql
index 30484471ca8..f055561f633 100644
--- a/htdocs/install/mysql/data/llx_c_units.sql
+++ b/htdocs/install/mysql/data/llx_c_units.sql
@@ -49,10 +49,6 @@ INSERT INTO llx_c_units (code, scale, label, short_label, unit_type, active) VAL
 INSERT INTO llx_c_units (code, scale, label, short_label, unit_type, active) VALUES ('L',  '98','VolumeUnitlitre','L', 'volume', 1);
 INSERT INTO llx_c_units (code, scale, label, short_label, unit_type, active) VALUES ('GAL','99','VolumeUnitgallon','gal', 'volume', 1);
 
-INSERT INTO llx_c_units (code, scale, label, short_label, unit_type, active) VALUES ('GAL','99','VolumeUnitgallon','gal', 'volume', 1);
-INSERT INTO llx_c_units (code, scale, label, short_label, unit_type, active) VALUES ('GAL','99','VolumeUnitgallon','gal', 'volume', 1);
-INSERT INTO llx_c_units (code, scale, label, short_label, unit_type, active) VALUES ('GAL','99','VolumeUnitgallon','gal', 'volume', 1);
-
 INSERT INTO llx_c_units (code, scale, label, short_label, unit_type, active) VALUES ('P',   '0','Piece','p', 'qty', 1);
 INSERT INTO llx_c_units (code, scale, label, short_label, unit_type, active) VALUES ('SET', '0','Set','set', 'qty', 1);