diff --git a/x11-themes/qtcurve/files/qtcurve-1.9.0_p20250314-qt-6.10.patch b/x11-themes/qtcurve/files/qtcurve-1.9.0_p20250314-qt-6.10.patch
new file mode 100644
index 000000000000..d714fcf912d0
--- /dev/null
+++ b/x11-themes/qtcurve/files/qtcurve-1.9.0_p20250314-qt-6.10.patch
@@ -0,0 +1,39 @@
+From 5a5566ffdb7c672f73788426aab8a8604ff7dc87 Mon Sep 17 00:00:00 2001
+From: Lars Wendler <polynomial-c@gmx.de>
+Date: Fri, 21 Nov 2025 01:29:26 +0100
+Subject: [PATCH] Fix build with qt-6.10
+
+Successfully tested with qt-6.9.3 as well
+---
+ qt6/CMakeLists.txt | 7 ++-----
+ 1 file changed, 2 insertions(+), 5 deletions(-)
+
+diff --git a/qt6/CMakeLists.txt b/qt6/CMakeLists.txt
+index 27b6bf7e..31f31ba6 100644
+--- a/qt6/CMakeLists.txt
++++ b/qt6/CMakeLists.txt
+@@ -4,9 +4,9 @@ set(CMAKE_AUTOUIC True)
+ include(CMakePrintHelpers)
+ 
+ if(QTC_QT6_ENABLE_QTQUICK2)
+-  set(QTC_QT6_MODULES Core Gui Widgets Svg Quick DBus)
++  set(QTC_QT6_MODULES Core Gui GuiPrivate Widgets WidgetsPrivate Svg Quick DBus)
+ else()
+-  set(QTC_QT6_MODULES Core Gui Widgets Svg DBus)
++  set(QTC_QT6_MODULES Core Gui GuiPrivate Widgets WidgetsPrivate Svg DBus)
+ endif()
+ if(QTC_QT6_ENABLE_KDE)
+   list(APPEND QTC_QT6_MODULES PrintSupport)
+@@ -18,9 +18,6 @@ set(QTC_QT6_ENABLE_KWIN Off)
+ 
+ find_package(Qt6 REQUIRED COMPONENTS ${QTC_QT6_MODULES})
+ list(TRANSFORM QTC_QT6_MODULES PREPEND "Qt6::" OUTPUT_VARIABLE QTC_QT6_LINK_LIBS)
+-if(QTC_ENABLE_X11)
+-  list(APPEND QTC_QT6_LINK_LIBS Qt6::CorePrivate)
+-endif()
+ foreach(QtModule ${QTC_QT6_OPT_MODULES})
+   find_package(Qt6${QtModule})
+   if(Qt6${QtModule}_FOUND)
+-- 
+GitLab
+
diff --git a/x11-themes/qtcurve/qtcurve-1.9.0_p20250314-r1.ebuild b/x11-themes/qtcurve/qtcurve-1.9.0_p20250314-r2.ebuild
similarity index 89%
rename from x11-themes/qtcurve/qtcurve-1.9.0_p20250314-r1.ebuild
rename to x11-themes/qtcurve/qtcurve-1.9.0_p20250314-r2.ebuild
index 308ed65e03f1..4d863ca2ed28 100644
--- a/x11-themes/qtcurve/qtcurve-1.9.0_p20250314-r1.ebuild
+++ b/x11-themes/qtcurve/qtcurve-1.9.0_p20250314-r2.ebuild
@@ -52,9 +52,9 @@ DEPEND="
 		X? ( dev-qt/qtx11extras:5 )
 	)
 	qt6? (
-		dev-qt/qtbase:6[dbus,gui,widgets]
-		dev-qt/qtsvg:6
-		X? ( dev-qt/qtbase:6=[X] )
+		>=dev-qt/qtbase-6.9.0:6[dbus,gui,widgets]
+		>=dev-qt/qtsvg-6.9.0:6
+		X? ( >=dev-qt/qtbase-6.9.0:6=[X] )
 	)
 	X? (
 		x11-libs/libX11
@@ -72,7 +72,10 @@ BDEPEND="
 
 DOCS=( AUTHORS ChangeLog.md README.md TODO.md )
 
-PATCHES=( "${FILESDIR}/${P}-manhandle-cmake.patch" ) # bug 959633
+PATCHES=(
+	"${FILESDIR}/${P}-manhandle-cmake.patch"  # bug 959633
+	"${FILESDIR}/${P}-qt-6.10.patch" # bug 966408
+)
 
 src_configure() {
 	local mycmakeargs=(