diff --git a/lingua_franca/lang/common_data_nl.py b/lingua_franca/lang/common_data_nl.py
index fc8affde..fd504636 100644
--- a/lingua_franca/lang/common_data_nl.py
+++ b/lingua_franca/lang/common_data_nl.py
@@ -21,7 +21,7 @@
 
 _NUM_STRING_NL = {
     0: 'nul',
-    1: 'een',
+    1: 'één',
     2: 'twee',
     3: 'drie',
     4: 'vier',