diff --git a/pkgs/development/libraries/kde-frameworks/ktexteditor.nix b/pkgs/development/libraries/kde-frameworks/ktexteditor.nix
index 9e88c0a99fc..7fc11b1505c 100644
--- a/pkgs/development/libraries/kde-frameworks/ktexteditor.nix
+++ b/pkgs/development/libraries/kde-frameworks/ktexteditor.nix
@@ -1,5 +1,5 @@
 {
-  mkDerivation, lib, copyPathsToStore,
+  mkDerivation, lib, copyPathsToStore, fetchpatch,
   extra-cmake-modules, perl,
   karchive, kconfig, kguiaddons, ki18n, kiconthemes, kio, kparts, libgit2,
   qtscript, qtxmlpatterns, sonnet, syntax-highlighting, qtquickcontrols
@@ -14,4 +14,9 @@ mkDerivation {
     qtxmlpatterns sonnet syntax-highlighting qtquickcontrols
   ];
   propagatedBuildInputs = [ kparts ];
+  patches = [ (fetchpatch {
+    url = "https://cgit.kde.org/ktexteditor.git/patch/?id=aeebeadb5f5955995c17de56cf83ba7166a132dd";
+    sha256 = "10a61w1qyw3czffl06xgccgd3yycz7s0hpg2vj0a24v05jhqiigf";
+    name = "ktextedtor_fix_indenters.patch";
+  })];
 }