diff --git a/lang_data/en/infix.txt b/lang_data/en/infix.txt
index b32be4c07..6bc58ff63 100644
--- a/lang_data/en/infix.txt
+++ b/lang_data/en/infix.txt
@@ -1,2 +1,3 @@
 (?<=[a-z])\.(?=[A-Z])
-(?<=[a-zA-Z])-(?=[a-zA-z])
+(?<=[a-zA-Z0-9])-(?=[a-zA-z])
+(?<=[a-zA-Z])-(?=[0-9a-zA-z])