diff --git a/Makefile b/Makefile
index 13ec1aa..4d62fb2 100644
--- a/Makefile
+++ b/Makefile
@@ -16,6 +16,9 @@ GOTEST_ARGS ?= -short
 
 OPENWRT_DEVICE ?= 192.168.1.1
 
+SIEGE_URLS_FILE ?= misc/siege/urls.txt
+SIEGE_CONCURRENCY ?= 100
+
 watch: tools/modd/bin/modd deps ## Watching updated files - live reload
 	( set -o allexport && source .env && set +o allexport && tools/modd/bin/modd )
 
@@ -105,7 +108,10 @@ grafterm: tools/grafterm/bin/grafterm
 	tools/grafterm/bin/grafterm -c ./misc/grafterm/dashboard.json -v job=bouncer-proxy -r 5s
 
 siege:
-	siege -i -c 100 -f ./misc/siege/urls.txt
+	$(eval TMP := $(shell mktemp))
+	cat $(SIEGE_URLS_FILE) | envsubst > $(TMP)
+	siege -i -b -c $(SIEGE_CONCURRENCY) -f $(TMP)
+	rm -rf $(TMP)
 
 tools/gitea-release/bin/gitea-release.sh:
 	mkdir -p tools/gitea-release/bin
diff --git a/misc/siege/urls.txt b/misc/siege/urls.txt
index a830156..6d7cf9b 100644
--- a/misc/siege/urls.txt
+++ b/misc/siege/urls.txt
@@ -1,6 +1,6 @@
-http://localhost:8080/blog/
-http://localhost:8080/services/
-http://localhost:8080/
-http://localhost:8080/recrutement/
-http://localhost:8080/faq/
-http://localhost:8080/societe/histoire/
\ No newline at end of file
+${BASE_URL}/blog/
+${BASE_URL}/services/
+${BASE_URL}
+${BASE_URL}/recrutement/
+${BASE_URL}/faq/
+${BASE_URL}/societe/histoire/
\ No newline at end of file