diff --git a/app/config.py b/app/config.py
index 2ceac359..7ba40f00 100644
--- a/app/config.py
+++ b/app/config.py
@@ -292,3 +292,6 @@ ALERT_SPF = "spf"
 
 # Disable onboarding emails
 DISABLE_ONBOARDING = "DISABLE_ONBOARDING" in os.environ
+
+HCAPTCHA_SECRET = os.environ.get("HCAPTCHA_SECRET")
+HCAPTCHA_SITEKEY = os.environ.get("HCAPTCHA_SITEKEY")
diff --git a/example.env b/example.env
index ca5c4c19..79d70470 100644
--- a/example.env
+++ b/example.env
@@ -145,4 +145,8 @@ DISABLE_ONBOARDING=true
 
 # By default use postfix port 25. This param is used to override the Postfix port,
 # useful when using another SMTP server when developing locally
-# POSTFIX_PORT=1025
\ No newline at end of file
+# POSTFIX_PORT=1025
+
+# set the 2 below variables to enable hCaptcha
+# HCAPTCHA_SECRET=very_long_string
+# HCAPTCHA_SITEKEY=00000000-0000-0000-0000-000000000000
\ No newline at end of file