diff --git a/pkgs/desktops/plasma-5/breeze-gtk.nix b/pkgs/desktops/plasma-5/breeze-gtk.nix
index 1be3fe1c309..bff3546aa33 100644
--- a/pkgs/desktops/plasma-5/breeze-gtk.nix
+++ b/pkgs/desktops/plasma-5/breeze-gtk.nix
@@ -6,6 +6,9 @@ mkDerivation {
   name = "breeze-gtk";
   nativeBuildInputs = [ extra-cmake-modules sassc python3 python3.pkgs.pycairo breeze-qt5 ];
   buildInputs = [ qtbase ];
+  patches = [
+    ./patches/0001-fix-add-executable-bit.patch
+  ];
   postPatch = ''
     sed -i cmake/FindGTKEngine.cmake \
       -e "s|\''${KDE_INSTALL_FULL_LIBDIR}|${getLib gtk2}/lib|"
diff --git a/pkgs/desktops/plasma-5/patches/0001-fix-add-executable-bit.patch b/pkgs/desktops/plasma-5/patches/0001-fix-add-executable-bit.patch
new file mode 100644
index 00000000000..8ed82222059
--- /dev/null
+++ b/pkgs/desktops/plasma-5/patches/0001-fix-add-executable-bit.patch
@@ -0,0 +1,25 @@
+From da6a4651f74625f4c7f3c31f1125cfa4e774780b Mon Sep 17 00:00:00 2001
+From: Yaroslav Bolyukin <iam@lach.pw>
+Date: Mon, 27 Sep 2021 22:45:58 +0300
+Subject: [PATCH] fix: add executable bit
+
+Signed-off-by: Yaroslav Bolyukin <iam@lach.pw>
+---
+ src/CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
+index 79ff12d..4f3d746 100644
+--- a/src/CMakeLists.txt
++++ b/src/CMakeLists.txt
+@@ -2,7 +2,7 @@ file(GLOB_RECURSE SCSS_SOURCES "*.scss")
+ file(GLOB CSS_SOURCES "*.css")
+ file(GLOB_RECURSE GTK2_SOURCES "gtk2/*")
+ 
+-configure_file(build_theme.sh.cmake ${CMAKE_CURRENT_BINARY_DIR}/build_theme.sh @ONLY)
++configure_file(build_theme.sh.cmake ${CMAKE_CURRENT_BINARY_DIR}/build_theme.sh FILE_PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE @ONLY)
+ 
+ set(SOURCES
+     ${SCSS_SOURCES}
+-- 
+2.33.0