diff --git a/db/routines/vn/procedures/collection_assign.sql b/db/routines/vn/procedures/collection_assign.sql
index c2d4a34ef..a4c861c96 100644
--- a/db/routines/vn/procedures/collection_assign.sql
+++ b/db/routines/vn/procedures/collection_assign.sql
@@ -3,7 +3,7 @@ CREATE OR REPLACE DEFINER=`vn`@`localhost` PROCEDURE `vn`.`collection_assign`(
 	vUserFk INT,
 	OUT vCollectionFk INT
 )
-BEGIN   
+BEGIN
 /**
  * Comprueba si existen colecciones libres que se ajustan
  * al perfil del usuario y le asigna la más antigua.
@@ -45,6 +45,12 @@ BEGIN
 	DECLARE CONTINUE HANDLER FOR NOT FOUND SET vDone = TRUE;
 	-- Si hay colecciones sin terminar, sale del proceso
 
+	DECLARE EXIT HANDLER FOR SQLEXCEPTION
+	BEGIN
+		ROLLBACK;
+		RESIGNAL;
+	END;
+
 	CALL collection_get(vUserFk);
 
 	SELECT (pc.maxNotReadyCollections - COUNT(*)) <= 0, pc.maxNotAssignedCollectionLifeTime