diff --git a/sci-visualization/paraview/paraview-4.4.0.ebuild b/sci-visualization/paraview/paraview-4.4.0.ebuild
index 89dd7f316116e..e583325420b0e 100644
--- a/sci-visualization/paraview/paraview-4.4.0.ebuild
+++ b/sci-visualization/paraview/paraview-4.4.0.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2015 Gentoo Foundation
+# Copyright 1999-2016 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 # $Id$
 
@@ -22,7 +22,7 @@ SLOT="0"
 IUSE="boost cg coprocessing development doc examples ffmpeg mpi mysql nvcontrol plugins python qt4 sqlite tcl test tk"
 RESTRICT="test"
 
-REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )
+REQUIRED_USE="python? ( mpi ${PYTHON_REQUIRED_USE} )
 	mysql? ( sqlite )" # "vtksqlite, needed by vtkIOSQL" and "vtkIOSQL, needed by vtkIOMySQL"
 
 RDEPEND="
diff --git a/sci-visualization/paraview/paraview-5.1.0.ebuild b/sci-visualization/paraview/paraview-5.1.0.ebuild
index 3ce73ff21f21d..695baea682bb3 100644
--- a/sci-visualization/paraview/paraview-5.1.0.ebuild
+++ b/sci-visualization/paraview/paraview-5.1.0.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2015 Gentoo Foundation
+# Copyright 1999-2016 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 # $Id$
 
@@ -22,7 +22,7 @@ SLOT="0"
 IUSE="boost cg coprocessing development doc examples ffmpeg mpi mysql nvcontrol plugins python qt5 sqlite tcl test tk"
 RESTRICT="test"
 
-REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )
+REQUIRED_USE="python? ( mpi ${PYTHON_REQUIRED_USE} )
 	mysql? ( sqlite )" # "vtksqlite, needed by vtkIOSQL" and "vtkIOSQL, needed by vtkIOMySQL"
 
 RDEPEND="