diff --git a/src/main/java/swiss/sib/swissprot/r2s2/loading/Compression.java b/src/main/java/swiss/sib/swissprot/r2s2/loading/Compression.java
index aedc8a4..5e36aec 100644
--- a/src/main/java/swiss/sib/swissprot/r2s2/loading/Compression.java
+++ b/src/main/java/swiss/sib/swissprot/r2s2/loading/Compression.java
@@ -84,7 +84,7 @@ public ProcessBuilder decompressInExternalProcessBuilder(File f) throws FileNotF
 			return pb;
 		}
 	},
-	NONE("") {
+	NONE("none") {
 
 		@Override
 		public InputStream decompress(File f) throws FileNotFoundException, IOException {