--- a/.emacs-my	Sun Jan 29 23:10:53 2017 +0200
+++ b/.emacs-my	Mon Jan 30 14:28:51 2017 +0200
@@ -1139,6 +1139,7 @@
 (setq company-dabbrev-other-buffers 'all) ; or `t' or `nil'
 ;; (setq company-dabbrev-time-limit 0.1)
 (setq company-dabbrev-downcase nil)
+(setq company-dabbrev-ignore-case nil)
 
 ;; (setq company-backends (delete 'company-dabbrev company-backends))