diff --git a/Engineering/ddl/PNA/00_first_migration.sql b/Engineering/ddl/PNA/00_first_migration.sql
index a1dae7845c11d595c0545f2187778ddfa9a337cf..f4ca3db5d2d10228d0e29de3e95057eb03a16ef1 100644
--- a/Engineering/ddl/PNA/00_first_migration.sql
+++ b/Engineering/ddl/PNA/00_first_migration.sql
@@ -184,7 +184,7 @@ create table pna.pna_costs
   constraint ashp_score_pk
   primary key (id),
   constraint ashp_score_fk
-  foreign key (building_id) references building_info
+  foreign key (building_id) references pna.building_info
 );
 
 create unique index "ashp_score_ashp-score-id"
@@ -240,11 +240,11 @@ create table pna.submitted_answers
   constraint submitted_answers_pk
   unique (building_id, question_id),
   constraint submitted_answers_fk
-  foreign key (building_id) references building_info,
+  foreign key (building_id) references pna.building_info,
   constraint submitted_answers_fk1
-  foreign key (question_id) references questions,
+  foreign key (question_id) references pna.questions,
   constraint submitted_answers_fk2
-  foreign key (answer_id) references dropdown_answers
+  foreign key (answer_id) references pna.dropdown_answers
 );
 
 create unique index submitted_answers_id_uindex
@@ -263,11 +263,11 @@ create table pna.que_ans_sw
   constraint que_ans_sw_pk
   unique (question_id, answer_id),
   constraint que_ans_sw_fk1
-  foreign key (question_id) references questions,
+  foreign key (question_id) references pna.questions,
   constraint que_ans_sw_fk2
-  foreign key (answer_id) references dropdown_answers,
+  foreign key (answer_id) references pna.dropdown_answers,
   constraint que_ans_sw_fk3
-  foreign key (criteria_id) references criterias
+  foreign key (criteria_id) references pna.criterias
 );
 
 -- Insert Question Answers Score Weight