diff --git a/guix-data-service/model/package-derivation-by-guix-revision-range.scm b/guix-data-service/model/package-derivation-by-guix-revision-range.scm
index 671771e..585c2e3 100644
--- a/guix-data-service/model/package-derivation-by-guix-revision-range.scm
+++ b/guix-data-service/model/package-derivation-by-guix-revision-range.scm
@@ -151,6 +151,7 @@ INNER JOIN guix_revisions
  AND revision_packages.revision_id = guix_revisions.id
 INNER JOIN git_branches
   ON git_branches.name = $2
+ AND git_branches.git_repository_id = $1
 INNER JOIN git_commits
   ON git_branches.id = git_commits.git_branch_id
  AND guix_revisions.commit = git_commits.commit