diff --git a/dde-kwin.spec b/dde-kwin.spec
index 75becaebc2d3470959da53b364b9ae6ef20553d3..fc5fc39f0b62084ae6d70a2a6e56c6fdb9311c4f 100644
--- a/dde-kwin.spec
+++ b/dde-kwin.spec
@@ -1,5 +1,5 @@
 %global repo dde-kwin
-%define pkgrelease  2
+%define pkgrelease  3
 %if 0%{?openeuler}
 %define specrelease %{pkgrelease}
 %else
@@ -121,6 +121,7 @@ export PATH=%{_qt5_bindir}:$PATH
 
 %install
 %make_install
+chmod 755 %{buildroot}%{_bindir}/kwin_no_scale
 
 %files
 %doc CHANGELOG.md
@@ -148,6 +149,9 @@ export PATH=%{_qt5_bindir}:$PATH
 %endif
 
 %changelog
+* Wed Aug 03 2022 liweiganga <liweiganga@uniontech.com> - 5.4.26-3
+- modify kwin_no_scale permission to 755
+
 * Tue Aug 02 2022 liweiganga <liweiganga@uniontech.com> - 5.4.26-2
 - modify requires