diff --git a/x11-themes/qtcurve/qtcurve-1.9.0_rc1-r2.ebuild b/x11-themes/qtcurve/qtcurve-1.9.0_rc1-r2.ebuild
index a69b44261913d..ae1d8dc5cf1ba 100644
--- a/x11-themes/qtcurve/qtcurve-1.9.0_rc1-r2.ebuild
+++ b/x11-themes/qtcurve/qtcurve-1.9.0_rc1-r2.ebuild
@@ -74,7 +74,6 @@ src_configure() {
 		-DENABLE_QT4=OFF
 		-DLIB_INSTALL_DIR="$(get_libdir)"
 		-DQTC_QT4_ENABLE_KDE=OFF
-		-DQTC_QT4_ENABLE_KWIN=OFF
 		-DQTC_KDE4_DEFAULT_HOME=ON
 		-DENABLE_GTK2="$(usex gtk)"
 		-DENABLE_QT5="$(usex qt5)"
diff --git a/x11-themes/qtcurve/qtcurve-9999.ebuild b/x11-themes/qtcurve/qtcurve-9999.ebuild
index 0c90108fce51e..ca3205965a3b4 100644
--- a/x11-themes/qtcurve/qtcurve-9999.ebuild
+++ b/x11-themes/qtcurve/qtcurve-9999.ebuild
@@ -74,7 +74,6 @@ src_configure() {
 		-DLIB_INSTALL_DIR="$(get_libdir)"
 		-DENABLE_QT4=OFF
 		-DQTC_QT4_ENABLE_KDE=OFF
-		-DQTC_QT4_ENABLE_KWIN=OFF
 		-DQTC_KDE4_DEFAULT_HOME=ON
 		-DENABLE_GTK2="$(usex gtk)"
 		-DENABLE_QT5="$(usex qt5)"