diff --git a/extra/kdiff3/PKGBUILD b/extra/kdiff3/PKGBUILD
index e7a633882..09f161bba 100644
--- a/extra/kdiff3/PKGBUILD
+++ b/extra/kdiff3/PKGBUILD
@@ -5,8 +5,8 @@
 #  - patch to explicitly link v5/v6 with libatomic
 
 pkgname=kdiff3
-pkgver=1.9.0
-pkgrel=2
+pkgver=1.9.1
+pkgrel=1
 pkgdesc='A file comparator/merge tool'
 arch=(x86_64)
 url='https://kde.org/applications/development/kdiff3/'
@@ -15,7 +15,7 @@ depends=(kparts hicolor-icon-theme)
 makedepends=(extra-cmake-modules kdoctools boost)
 source=(https://download.kde.org/stable/$pkgname/$pkgname-$pkgver.tar.xz{,.sig}
         0001-link-atomic.patch)
-sha256sums=('a7fd61a23f1e37f25af0efa82265d4723e63889aa3213a58b76ce0c96eab23d0'
+sha256sums=('079df4523c15919489707dc89b738ad6432680d42de59caecb3a9219b5cbd294'
             'SKIP'
             '47ce388156ae3d70efb6915c94db3502b0bbdfa439aaf4a6b75f7ab6702e338c')
 validpgpkeys=(EE56D710885D36FB1E4D21F3F442B36D614B06BC) # Michael Reeves <reeves.87@gmail.com>
@@ -28,8 +28,7 @@ prepare() {
 }
 
 build() {
-  cmake -B build -S $pkgname-$pkgver \
-    -DCMAKE_CXX_FLAGS="${CXXFLAGS} -DNDEBUG"
+  cmake -B build -S $pkgname-$pkgver
   cmake --build build
 }