diff --git a/.changeset/calm-files-hunt.md b/.changeset/calm-files-hunt.md
new file mode 100644
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+++ b/.changeset/calm-files-hunt.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-search-backend-module-elasticsearch': patch
+---
+
+Allow indexPrefix configuration through the app-config.yaml