diff --git a/podman-matrix/10_install.sh b/podman-matrix/10_install.sh
index e537291..ffde943 100755
--- a/podman-matrix/10_install.sh
+++ b/podman-matrix/10_install.sh
@@ -22,8 +22,8 @@ fi
 
 cat <<EOT >> .env
 POSTGRES_PASSWORD=${GARBAYE_MATRIX_POSTGRES_PASSWORD}
-POSTGRES_USER=${container_name}
-POSTGRES_DB=${container_name}
+POSTGRES_USER=synapse
+POSTGRES_DB=synapse
 POSTGRES_INITDB_ARGS=--encoding=UTF8 --locale=C
 EOT