diff --git a/gnu/local.mk b/gnu/local.mk
index ced2d3a68ed..1128a954666 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -1072,6 +1072,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/calibre-remove-test-sqlite.patch		\
   %D%/packages/patches/calibre-remove-test-unrar.patch		\
   %D%/packages/patches/calibre-remove-test-import-modules.patch	\
+  %D%/packages/patches/calligra-qt-6.9.patch                    \
   %D%/packages/patches/calls-disable-application-test.patch	\
   %D%/packages/patches/calls-disable-sip-test.patch		\
   %D%/packages/patches/camlboot-dynamically-allocate-stack-signal.patch	\
diff --git a/gnu/packages/kde-office.scm b/gnu/packages/kde-office.scm
index dc3241d7ecd..59ef0a8ace4 100644
--- a/gnu/packages/kde-office.scm
+++ b/gnu/packages/kde-office.scm
@@ -24,6 +24,7 @@
   #:use-module (guix gexp)
   #:use-module (guix utils)
   #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (gnu packages)
   #:use-module (gnu packages algebra)
   #:use-module (gnu packages boost)
   #:use-module (gnu packages cdrom)
@@ -62,7 +63,8 @@
                                   "calligra-" version ".tar.xz"))
               (sha256
                (base32
-                "0pyri2ypzva4b4rnl2p3xp0ph5xcn181msj86l5xq6sg7zkza0fl"))))
+                "0pyri2ypzva4b4rnl2p3xp0ph5xcn181msj86l5xq6sg7zkza0fl"))
+              (patches (search-patches "calligra-qt-6.9.patch"))))
     (build-system qt-build-system)
     (arguments
      (list #:qtbase qtbase
diff --git a/gnu/packages/patches/calligra-qt-6.9.patch b/gnu/packages/patches/calligra-qt-6.9.patch
new file mode 100644
index 00000000000..04b17cddf20
--- /dev/null
+++ b/gnu/packages/patches/calligra-qt-6.9.patch
@@ -0,0 +1,46 @@
+From 659c88eec87160d908faf9b78b7b1006eb7e5bf3 Mon Sep 17 00:00:00 2001
+From: Nicolas Fella <nicolas.fella@gmx.de>
+Date: Fri, 10 Jan 2025 15:44:09 +0100
+Subject: [PATCH] Fix build with Qt 6.9
+
+Converting Qt::Key to QChar doesn't work any more
+---
+ libs/basicflakes/tools/KoCreatePathTool.cpp | 2 +-
+ plugins/textshape/TextTool.cpp              | 4 ++--
+ 2 files changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/libs/basicflakes/tools/KoCreatePathTool.cpp b/libs/basicflakes/tools/KoCreatePathTool.cpp
+index 699f3b0e772..6cb7f11b4a4 100644
+--- a/libs/basicflakes/tools/KoCreatePathTool.cpp
++++ b/libs/basicflakes/tools/KoCreatePathTool.cpp
+@@ -444,7 +444,7 @@ QList<QPointer<QWidget>> KoCreatePathTool::createOptionWidgets()
+     angleEdit->setValue(d->angleSnappingDelta);
+     angleEdit->setRange(1, 360);
+     angleEdit->setSingleStep(1);
+-    angleEdit->setSuffix(QChar(Qt::Key_degree));
++    angleEdit->setSuffix(QStringLiteral("°"));
+     layout->addWidget(angleEdit, 0, 1);
+     layout->addWidget(new QLabel(i18n("Activate angle snap:"), angleWidget), 1, 0);
+     QCheckBox *angleSnap = new QCheckBox(angleWidget);
+diff --git a/plugins/textshape/TextTool.cpp b/plugins/textshape/TextTool.cpp
+index 79e88353408..bb82e7b90c5 100644
+--- a/plugins/textshape/TextTool.cpp
++++ b/plugins/textshape/TextTool.cpp
+@@ -2360,7 +2360,7 @@ void TextTool::nonbreakingSpace()
+ {
+     if (!m_allowActions || !m_textEditor.data())
+         return;
+-    m_textEditor.data()->insertText(QString(QChar(Qt::Key_nobreakspace)));
++    m_textEditor.data()->insertText(QString(QChar(QChar::Nbsp)));
+ }
+ 
+ void TextTool::nonbreakingHyphen()
+@@ -2374,7 +2374,7 @@ void TextTool::softHyphen()
+ {
+     if (!m_allowActions || !m_textEditor.data())
+         return;
+-    m_textEditor.data()->insertText(QString(QChar(Qt::Key_hyphen)));
++    m_textEditor.data()->insertText(QString(QChar(QChar::SoftHyphen)));
+ }
+ 
+ void TextTool::lineBreak()