diff --git a/Mac/Makefile.in b/Mac/Makefile.in
index a5cb3622f2f..f28d1ea1936 100644
--- a/Mac/Makefile.in
+++ b/Mac/Makefile.in
@@ -216,9 +216,9 @@ install_Python4way: install_Python
 install_IDLE:
 	test -d "$(DESTDIR)$(PYTHONAPPSDIR)" || mkdir -p "$(DESTDIR)$(PYTHONAPPSDIR)"
 	-test -d "$(DESTDIR)$(PYTHONAPPSDIR)/IDLE.app" && rm -r "$(DESTDIR)$(PYTHONAPPSDIR)/IDLE.app"
-	cp -PR "$(srcdir)/IDLE/IDLE.app" "$(DESTDIR)$(PYTHONAPPSDIR)"
+	/bin/cp -PR "$(srcdir)/IDLE/IDLE.app" "$(DESTDIR)$(PYTHONAPPSDIR)"
 	ln -sf $(INSTALLED_PYTHONAPP) "$(DESTDIR)$(PYTHONAPPSDIR)/IDLE.app/Contents/MacOS/Python"
-	sed "s!%prefix%!$(prefix)!g" < "$(srcdir)/IDLE/IDLE.app/Contents/MacOS/IDLE" > "$(DESTDIR)$(PYTHONAPPSDIR)/IDLE.app/Contents/MacOS/IDLE"
+	sed -e "s!%prefix%!$(prefix)!g" -e 's!%exe%!$(PYTHONFRAMEWORK)!g' < "$(srcdir)/IDLE/IDLE.app/Contents/MacOS/IDLE" > "$(DESTDIR)$(PYTHONAPPSDIR)/IDLE.app/Contents/MacOS/IDLE"
 	sed "s!%version%!`$(RUNSHARED) $(BUILDPYTHON) -c 'import platform; print(platform.python_version())'`!g" < "$(srcdir)/IDLE/IDLE.app/Contents/Info.plist" > "$(DESTDIR)$(PYTHONAPPSDIR)/IDLE.app/Contents/Info.plist"
 	touch "$(DESTDIR)$(PYTHONAPPSDIR)/IDLE.app"
 
diff --git a/Mac/PythonLauncher/Makefile.in b/Mac/PythonLauncher/Makefile.in
index 2d8da33a8fb..96493ad6787 100644
--- a/Mac/PythonLauncher/Makefile.in
+++ b/Mac/PythonLauncher/Makefile.in
@@ -27,7 +27,7 @@ OBJECTS=FileSettings.o MyAppDelegate.o MyDocument.o PreferencesWindowController.
 install: Python\ Launcher.app
 	test -d "$(DESTDIR)$(PYTHONAPPSDIR)" || mkdir -p "$(DESTDIR)$(PYTHONAPPSDIR)"
 	-test -d "$(DESTDIR)$(PYTHONAPPSDIR)/Python Launcher.app" && rm -r "$(DESTDIR)$(PYTHONAPPSDIR)/Python Launcher.app"
-	cp -r "Python Launcher.app" "$(DESTDIR)$(PYTHONAPPSDIR)"
+	/bin/cp -r "Python Launcher.app" "$(DESTDIR)$(PYTHONAPPSDIR)"
 	touch "$(DESTDIR)$(PYTHONAPPSDIR)/Python Launcher.app"