1 files changed, 1 insertions, 1 deletions
diff --git a/schema.sql b/schema.sql
index 954b359..d0a27cf 100644
--- a/schema.sql
+++ b/schema.sql
@@ -4,6 +4,6 @@ CREATE TABLE dependency (package TEXT, required TEXT, FOREIGN KEY (package) REFE
 CREATE INDEX content_package_index ON content (package);
 CREATE INDEX content_hash_index ON content (hash);
 
-CREATE TABLE sharing (package1 TEXT, package2 TEXT, func1 TEXT, func2 TEXT, files INTEGER, size INTEGER);
+CREATE TABLE sharing (package1 TEXT, package2 TEXT, func1 TEXT, func2 TEXT, files INTEGER, size INTEGER, FOREIGN KEY (package1) REFERENCES package(package), FOREIGN KEY (package2) REFERENCES package(package));
 CREATE INDEX sharing_insert_index ON sharing (package1, package2, func1, func2);
 CREATE INDEX sharing_package_index ON sharing (package1);