diff --git a/.gitignore b/.gitignore
index 2c1c7a0..2fa159d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -34,6 +34,10 @@ ingest/
 .env
 .env.local
 .env.*.local
+# Edifabric / EdiNation operator-supplied dev key (env file).
+# Lives at backend/.env.cyclone-edifabric; source it in the shell.
+.env.cyclone-edifabric
+backend/.env.cyclone-edifabric
 
 # Production data (handled by ops, not committed)
 docs/prodfiles/*/