diff --git a/CHANGELOG.md b/CHANGELOG.md
index dc9236c..6c33f16 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## [0.8] - 2021-05-07
 ### Added
 - Introduce "Browse"-button on directory-selection dialogs
+- Installing necessary PySide2 package for GUI-mode if not existing
 
 ## [0.7] - 2021-05-06
 ### Added
diff --git a/install.py b/install.py
index 40bde02..d6468be 100644
--- a/install.py
+++ b/install.py
@@ -35,10 +35,6 @@ def set_language(language):
     global LANGUAGE
     LANGUAGE = language
 
-def set_exclude(exclude_flag):
-    global EXCLUDE
-    EXCLUDE = exclude_flag
-
 def trace(message_txt):
     """ Print a formatted message to std out. """
     print("[  OK  ] " + message_txt)
@@ -73,11 +69,12 @@ def main_install_cli():
 
     # asks if you want to exclude files/directories from backup and creates an exclude file in case of Yes
     exclude = input(get_lang_text("excludefile1") + "\n> ")
+    global EXCLUDE
     if exclude.upper() in ("J", "Y"):
-        set_exclude(True)
+        EXCLUDE = True
         print(get_lang_text("excludefile2") + "\n")
     else:
-        set_exclude(False)
+        EXCLUDE = False
         print(get_lang_text("excludefile3") + "\n")
     time.sleep(1)
 
@@ -167,7 +164,7 @@ def main(argv):
 
     if argv and argv[0] == "--gui":
         from install_gui import main_install_gui
-        trace("Starting GUI-version.\n")
+        trace("Starting GUI-version.")
         is_finalized, is_exclude, rsync_cmd = main_install_gui()  # collect user input via GUI and store in env. variables
 
     else:
diff --git a/install.sh b/install.sh
index 08fe784..f1e9ffd 100755
--- a/install.sh
+++ b/install.sh
@@ -18,6 +18,7 @@ if [ "$1" == "--gui" ]; then
     if ! pip list | grep PySide2> /dev/null
     then
       # Install PySide2
+      echo -e "Installing necessary PySide2 package for GUI-mode."
       pip3 install PySide2
     fi
     # Launch python installer in GUI mode