diff --git a/sci-visualization/paraview/paraview-5.1.0-r1.ebuild b/sci-visualization/paraview/paraview-5.1.0-r1.ebuild
index b493fce2b88ed..772bb85df3a2e 100644
--- a/sci-visualization/paraview/paraview-5.1.0-r1.ebuild
+++ b/sci-visualization/paraview/paraview-5.1.0-r1.ebuild
@@ -123,6 +123,10 @@ src_prepare() {
 }
 
 src_configure() {
+	if use qt5; then
+		export QT_SELECT=qt5
+	fi
+
 	# VTK_USE_SYSTEM_QTTESTING
 	# PARAVIEW_USE_SYSTEM_AUTOBAHN
 	local mycmakeargs=(