diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 24620e7..bbc49a4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,3 +27,4 @@ jobs:
           ./bashbrew list "$image"
           ./bashbrew list --uniq "$image"
           ./bashbrew cat "$image"
+          ./bashbrew from --uniq "$image"