diff --git a/init.d/programming/common.el b/init.d/programming/common.el
index 6fcfedc..7108465 100644
--- a/init.d/programming/common.el
+++ b/init.d/programming/common.el
@@ -1,6 +1,6 @@
 ;;; common.el --- Common programming settings. -*- lexical-binding: t; -*-
 
-;; Time-stamp: <2020-07-04T15:00:22+0200>
+;; Time-stamp: <2020-07-29T16:55:54+0200>
 
 ;;; Commentary:
 
@@ -128,7 +128,10 @@ collapse other projects."
              (projectile-project-configure-cmd
               "cmake -GUnix\\ Makefiles -DCMAKE_BUILD_TYPE=Debug \
 -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DWITH_TESTS=YES ..")
-             (projectile-completion-system 'ivy))
+             (projectile-completion-system 'ivy)
+             (projectile-indexing-method 'hybrid) ; Allow filtering.
+             (projectile-enable-caching t)
+             (projectile-globally-ignored-file-suffixes '("~")))
     :config (progn
               (setq projectile-project-compilation-cmd
                     (concat my/cmake-compile-command