diff --git a/debian/patches/tools-perf-install.patch b/debian/patches/tools-perf-install.patch
index b82fb7b7ae13..34d612cdeb63 100644
--- a/debian/patches/tools-perf-install.patch
+++ b/debian/patches/tools-perf-install.patch
@@ -1,6 +1,6 @@
 --- a/tools/perf/Makefile
 +++ b/tools/perf/Makefile
-@@ -1051,13 +1051,13 @@
+@@ -1051,16 +1051,16 @@
  	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'
  	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/bin'
  	$(INSTALL) $(OUTPUT)perf-archive -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
@@ -17,4 +17,8 @@
 +	$(INSTALL) -m 644 scripts/python/*.py -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python'
  	$(INSTALL) scripts/python/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/bin'
  	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d'
- 	$(INSTALL) bash_completion '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d/perf'
+-	$(INSTALL) bash_completion '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d/perf'
++	$(INSTALL) -m 644 bash_completion '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d/perf'
+ 
+ install-python_ext:
+ 	$(PYTHON_WORD) util/setup.py --quiet install --root='/$(DESTDIR_SQ)'