diff --git a/doc/syntax/rust.nanorc b/doc/syntax/rust.nanorc
index c664ce02f2038fcf9aed8231bd47028846e71bd1..0381de6d73b198980af3807526b04fcabe896f7b 100644
--- a/doc/syntax/rust.nanorc
+++ b/doc/syntax/rust.nanorc
@@ -20,7 +20,7 @@ color red "[a-z_]+!"
 color magenta "[A-Z][A-Z_0-9]+"
 
 # Traits/Enums/Structs/Types/...
-color magenta "[A-Z][a-z0-9]+"
+color magenta "[A-Z][A-Za-z0-9]+"
 
 # Strings
 color green "\".*\""