diff --git a/Snakefile b/Snakefile
index 22b6107d..c786efdc 100644
--- a/Snakefile
+++ b/Snakefile
@@ -218,7 +218,7 @@ rule add_electricity:
         nuts3_shapes='resources/nuts3_shapes.geojson',
         **{f"profile_{tech}": f"resources/profile_{tech}.nc"
            for tech in config['renewable']},
-        **{"conventional_{carrier}_{attrs}": fn for carrier in config.get('conventional', {None: {}}).values() for fn in carrier.values() if str(fn).startswith("data/")}, 
+        **{f"conventional_{carrier}_{attrs}": fn for carrier in config.get('conventional', {None: {}}).values() for attrs, fn in carrier.items() if str(fn).startswith("data/")}, 
     output: "networks/elec.nc"
     log: "logs/add_electricity.log"
     benchmark: "benchmarks/add_electricity"