diff --git a/opuscleaner/filters/normalize_whitespace.json b/opuscleaner/filters/normalize_whitespace.json
index 0999911..63c28f9 100644
--- a/opuscleaner/filters/normalize_whitespace.json
+++ b/opuscleaner/filters/normalize_whitespace.json
@@ -9,5 +9,5 @@
 	    "default": true
 	}
     },
-    "type": "bilingual"
+    "type": "monolingual"
 }