diff --git a/runtime/Makefile b/runtime/Makefile
index 5789a7c80..7caac882c 100644
--- a/runtime/Makefile
+++ b/runtime/Makefile
@@ -6,7 +6,7 @@ publish: layers
 	cd layers ; php publish.php
 
 # Build the layers
-layers: export/console.zip export/runtime.zip export/php-73.zip export/php-74.zip export/php-80.zip export/php-81.zip export/php-73-fpm.zip export/php-74-fpm.zip export/php-80-fpm.zip export/php-81-fpm.zip
+layers: export/console.zip export/php-73.zip export/php-74.zip export/php-80.zip export/php-81.zip export/php-73-runtime.zip export/php-74-runtime.zip export/php-80-runtime.zip export/php-81-runtime.zip export/php-73-fpm.zip export/php-74-fpm.zip export/php-80-fpm.zip export/php-81-fpm.zip
 
 # The PHP runtimes
 export/php%.zip: docker-images
@@ -28,11 +28,6 @@ export/console.zip: layers/console/bootstrap
 	rm -f export/console.zip
 	cd layers/console && zip ../../export/console.zip bootstrap breftoolbox.php
 
-# The "Symfony runtime" runtime
-export/runtime.zip: layers/sf-runtime/bootstrap
-	rm -f export/runtime.zip
-	cd layers/sf-runtime && zip ../../export/runtime.zip bootstrap
-
 # Build Docker images
 docker-images:
 	# Build the base environment (without PHP)
diff --git a/runtime/layers/tests.php b/runtime/layers/tests.php
index 76d2e9957..cabb6a721 100644
--- a/runtime/layers/tests.php
+++ b/runtime/layers/tests.php
@@ -11,6 +11,10 @@
     'bref/php-74',
     'bref/php-80',
     'bref/php-81',
+    'bref/php-73-runtime',
+    'bref/php-74-runtime',
+    'bref/php-80-runtime',
+    'bref/php-81-runtime',
     'bref/php-73-fpm',
     'bref/php-74-fpm',
     'bref/php-80-fpm',