diff --git a/Snakefile b/Snakefile
index ba93a869..ed60c0f5 100644
--- a/Snakefile
+++ b/Snakefile
@@ -22,7 +22,13 @@ configfile: "config/config.yaml"
 
 run = config["run"]
 scenarios = get_scenarios(run)
-RDIR = get_rdir(run)
+prefix = run.get("prefix", "")
+rdir = get_rdir(run)
+
+if prefix:
+    RDIR = f"{prefix}/{rdir}"
+else:
+    RDIR = rdir
 
 logs = path_provider("logs/", RDIR, run["shared_resources"])
 benchmarks = path_provider("benchmarks/", RDIR, run["shared_resources"])
diff --git a/config/config.default.yaml b/config/config.default.yaml
index 235c238d..61ef8c1b 100644
--- a/config/config.default.yaml
+++ b/config/config.default.yaml
@@ -20,6 +20,7 @@ remote:
 
 # docs in https://pypsa-eur.readthedocs.io/en/latest/configuration.html#run
 run:
+  prefix: ""
   name: ""
   scenarios:
     enable: false