diff --git a/easybuild/easyconfigs/v/VTK/VTK-9.0.1-foss-2020b.eb b/easybuild/easyconfigs/v/VTK/VTK-9.0.1-foss-2020b.eb
index b4161f95eaf..c92d21af64b 100644
--- a/easybuild/easyconfigs/v/VTK/VTK-9.0.1-foss-2020b.eb
+++ b/easybuild/easyconfigs/v/VTK/VTK-9.0.1-foss-2020b.eb
@@ -54,6 +54,7 @@ configopts += "-DOPENGL_gl_LIBRARY=$EBROOTMESA/lib/libGL.%s " % SHLIB_EXT
 configopts += "-DOPENGL_INCLUDE_DIR=$EBROOTMESA/include "
 # Python
 configopts += "-DVTK_WRAP_PYTHON=ON -DVTK_PYTHON_VERSION=3 -DVTK_PYTHON_OPTIONAL_LINK=OFF "
+configopts += '-DPython3_EXECUTABLE=$EBROOTPYTHON/bin/python '
 # Other
 configopts += "-DVTK_USE_MPI=ON "
 configopts += "-DCMAKE_INSTALL_LIBDIR=lib"
diff --git a/easybuild/easyconfigs/v/VTK/VTK-9.0.1-foss-2021a.eb b/easybuild/easyconfigs/v/VTK/VTK-9.0.1-foss-2021a.eb
index b6987d9bb81..c2ca95e963f 100644
--- a/easybuild/easyconfigs/v/VTK/VTK-9.0.1-foss-2021a.eb
+++ b/easybuild/easyconfigs/v/VTK/VTK-9.0.1-foss-2021a.eb
@@ -49,6 +49,7 @@ configopts += "-DOPENGL_gl_LIBRARY=$EBROOTMESA/lib/libGL.%s " % SHLIB_EXT
 configopts += "-DOPENGL_INCLUDE_DIR=$EBROOTMESA/include "
 # Python
 configopts += "-DVTK_WRAP_PYTHON=ON -DVTK_PYTHON_VERSION=3 -DVTK_PYTHON_OPTIONAL_LINK=OFF "
+configopts += '-DPython3_EXECUTABLE=$EBROOTPYTHON/bin/python '
 # Other
 configopts += "-DVTK_USE_MPI=ON "
 configopts += "-DCMAKE_INSTALL_LIBDIR=lib"