diff --git a/htdocs/install/mysql/tables/llx_commande.key.sql b/htdocs/install/mysql/tables/llx_commande.key.sql
index a608b46f075..876d5793a98 100644
--- a/htdocs/install/mysql/tables/llx_commande.key.sql
+++ b/htdocs/install/mysql/tables/llx_commande.key.sql
@@ -36,4 +36,3 @@ ALTER TABLE llx_commande ADD CONSTRAINT fk_commande_fk_user_author	FOREIGN KEY (
 ALTER TABLE llx_commande ADD CONSTRAINT fk_commande_fk_user_valid	FOREIGN KEY (fk_user_valid)  REFERENCES llx_user (rowid);
 ALTER TABLE llx_commande ADD CONSTRAINT fk_commande_fk_user_cloture	FOREIGN KEY (fk_user_cloture) REFERENCES llx_user (rowid);
 ALTER TABLE llx_commande ADD CONSTRAINT fk_commande_fk_projet		FOREIGN KEY (fk_projet) REFERENCES llx_projet (rowid);
-ALTER TABLE llx_commande ADD CONSTRAINT fk_commande_fk_currency		FOREIGN KEY (fk_currency) REFERENCES llx_c_currencies (code);
diff --git a/htdocs/install/mysql/tables/llx_facture.key.sql b/htdocs/install/mysql/tables/llx_facture.key.sql
index e4034b5e4a3..7294a19cd20 100644
--- a/htdocs/install/mysql/tables/llx_facture.key.sql
+++ b/htdocs/install/mysql/tables/llx_facture.key.sql
@@ -34,4 +34,3 @@ ALTER TABLE llx_facture ADD CONSTRAINT fk_facture_fk_user_author    FOREIGN KEY
 ALTER TABLE llx_facture ADD CONSTRAINT fk_facture_fk_user_valid     FOREIGN KEY (fk_user_valid)  REFERENCES llx_user (rowid);
 ALTER TABLE llx_facture ADD CONSTRAINT fk_facture_fk_facture_source FOREIGN KEY (fk_facture_source) REFERENCES llx_facture (rowid);
 ALTER TABLE llx_facture ADD CONSTRAINT fk_facture_fk_projet         FOREIGN KEY (fk_projet) REFERENCES llx_projet (rowid);
-ALTER TABLE llx_facture ADD CONSTRAINT fk_facture_fk_currency       FOREIGN KEY (fk_currency) REFERENCES llx_c_currencies (code);
\ No newline at end of file
diff --git a/htdocs/install/mysql/tables/llx_propal.key.sql b/htdocs/install/mysql/tables/llx_propal.key.sql
index 92200fca65c..530ce20864c 100644
--- a/htdocs/install/mysql/tables/llx_propal.key.sql
+++ b/htdocs/install/mysql/tables/llx_propal.key.sql
@@ -34,4 +34,3 @@ ALTER TABLE llx_propal ADD CONSTRAINT fk_propal_fk_user_author	FOREIGN KEY (fk_u
 ALTER TABLE llx_propal ADD CONSTRAINT fk_propal_fk_user_valid	FOREIGN KEY (fk_user_valid)  REFERENCES llx_user (rowid);
 ALTER TABLE llx_propal ADD CONSTRAINT fk_propal_fk_user_cloture	FOREIGN KEY (fk_user_cloture) REFERENCES llx_user (rowid);
 ALTER TABLE llx_propal ADD CONSTRAINT fk_propal_fk_projet		FOREIGN KEY (fk_projet) REFERENCES llx_projet (rowid);
-ALTER TABLE llx_propal ADD CONSTRAINT fk_propal_fk_currency		FOREIGN KEY (fk_currency) REFERENCES llx_c_currencies (code);
\ No newline at end of file