diff --git a/lang_data/en/infix.txt b/lang_data/en/infix.txt
index 28169ecbb..b32be4c07 100644
--- a/lang_data/en/infix.txt
+++ b/lang_data/en/infix.txt
@@ -1 +1,2 @@
 (?<=[a-z])\.(?=[A-Z])
+(?<=[a-zA-Z])-(?=[a-zA-z])