diff --git a/tests/data/glimmer-js.gjs b/tests/data/glimmer_js.gjs
similarity index 100%
rename from tests/data/glimmer-js.gjs
rename to tests/data/glimmer_js.gjs
diff --git a/tests/data/glimmer-ts.gts b/tests/data/glimmer_ts.gts
similarity index 100%
rename from tests/data/glimmer-ts.gts
rename to tests/data/glimmer_ts.gts