diff --git a/pkgs/development/python-modules/pyqt/6.x.nix b/pkgs/development/python-modules/pyqt/6.x.nix
index a44e8b89dfa9..eba98a79c9c8 100644
--- a/pkgs/development/python-modules/pyqt/6.x.nix
+++ b/pkgs/development/python-modules/pyqt/6.x.nix
@@ -42,6 +42,10 @@ buildPythonPackage rec {
     # ./pyqt5-fix-dbus-mainloop-support.patch
     # confirm license when installing via pyqt6_sip
     ./pyqt5-confirm-license.patch
+    # Fix build with Qt 6.8.2
+    # See: https://gitlab.archlinux.org/archlinux/packaging/packages/pyqt6/-/blob/main/qt-6.8.2.patch
+    # FIXME: remove when merged upstream
+    ./pyqt6-qt-6.8.2.patch
   ];
 
   build-system = [
diff --git a/pkgs/development/python-modules/pyqt/pyqt6-qt-6.8.2.patch b/pkgs/development/python-modules/pyqt/pyqt6-qt-6.8.2.patch
new file mode 100644
index 000000000000..b148722434a7
--- /dev/null
+++ b/pkgs/development/python-modules/pyqt/pyqt6-qt-6.8.2.patch
@@ -0,0 +1,12 @@
+diff -ru PyQt6-6.8.0.orig/sip/QtCore/qstringconverter_base.sip PyQt6-6.8.0/sip/QtCore/qstringconverter_base.sip
+--- PyQt6-6.8.0.orig/sip/QtCore/qstringconverter_base.sip       2025-01-31 12:23:09.006305233 +0100
++++ PyQt6-6.8.0/sip/QtCore/qstringconverter_base.sip    2025-01-31 12:28:34.695224379 +0100
+@@ -22,7 +22,7 @@
+ 
+ %If (Qt_6_4_0 -)
+ 
+-class QStringConverterBase
++class QStringConverterBase /NoDefaultCtors/
+ {
+ %TypeHeaderCode
+ #include <qstringconverter_base.h>