diff -r 8c92d66d20e4 -r 0f0f1598fc4a PyInstaller/PyInstallerConfigDialog.py
--- a/PyInstaller/PyInstallerConfigDialog.py Fri Jan 19 17:08:15 2018 +0100
+++ b/PyInstaller/PyInstallerConfigDialog.py Sat Jan 20 15:58:14 2018 +0100
@@ -255,7 +255,8 @@
args.append("--clean")
# 3. always add these arguments
- args.append("--noconfirm") # don't ask the user
+ if self.__mode == "installer":
+ args.append("--noconfirm") # don't ask the user
# determine the script to be processed
if self.__parameters["mainscript"]:
