diff --git a/dev_testing/generic/do-configure-mpi-debug b/dev_testing/generic/do-configure-mpi-debug
index afe95538f..75294f1d5 100755
--- a/dev_testing/generic/do-configure-mpi-debug
+++ b/dev_testing/generic/do-configure-mpi-debug
@@ -27,6 +27,7 @@ fi
 
 cmake \
 -D CMAKE_BUILD_TYPE:STRING="DEBUG" \
+-D PYTHON_EXECUTABLE=$(which python3) \
 -D TPL_ENABLE_MPI:BOOL=ON \
 -D TriBITS_ENABLE_Fortran:BOOL=ON \
 -D TriBITS_ENABLE_TESTS:BOOL=ON \