diff --git a/scripts/install b/scripts/install
index 92d19ed..2b46fa6 100644
--- a/scripts/install
+++ b/scripts/install
@@ -76,6 +76,19 @@ if ! [ ${PACKAGE_CHECK_EXEC:-0} -eq 1 ]; then
 	yunohost domain config set $sandboxdomain -a "mail_in=0&mail_out=0"
 fi
 
+#=================================================
+# CHECK IF THE MAIN DOMAIN IS ALREADY SETUP WITH CORRECT CERTIFICATE WHEN PUBLIC
+#=================================================
+# We don't test that in CI
+if ! [ ${PACKAGE_CHECK_EXEC:-0} -eq 1 ]; then
+	if [ $is_public -eq 1 ]
+	then
+		if ! yunohost domain cert status $domain | grep -q "summary: Great!"; then
+			ynh_die "The domain $domain does not have correct Let's Encrypt certificates !"
+		fi
+	fi
+fi
+
 #=================================================
 # INSTALL DEPENDENCIES
 #=================================================