diff --git a/CMakeLists.txt b/CMakeLists.txt
index 78f590d61eb3eaa7e70fb142d6f2b8374efc3585..cde54519bb36923d7edd923cfcc00f82369e910a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,7 +10,9 @@ option(WITH_BOOST "Use Boost libraries instead of GSL" OFF)
 option(WITH_CUDA "Use CUDA/GPU" OFF)
 option(WITH_MPI "Use MPI" OFF)
 
+# Required packages.
 find_package(PythonInterp REQUIRED)
+
 add_custom_target(moose ALL)
 
 ## intialize paths
diff --git a/build_moose-core.sh.in b/build_moose-core.sh.in
index 743243d111bbba21803f6a0d114321a5309d1995..84057cf781c49906e09bf59199a5f04ac132c7c2 100755
--- a/build_moose-core.sh.in
+++ b/build_moose-core.sh.in
@@ -17,6 +17,7 @@ echo "Building MOOSE"
     cd @PYMOOSE_BUILD_DIR@
     cmake -DCMAKE_INSTALL_PREFIX=@PYMOOSE_INSTALL_DIR@ \
         -DCMAKE_BUILD_TYPE=Release \
+        -DPYTHON_EXECUTABLE=@PYTHON_EXECUTABLE@ \
         @CMAKE_PYMOOSE_ARGS@ \
         @PYMOOSE_SOURCE_DIR@ 
     $MAKE
diff --git a/moose-core/VERSION b/moose-core/VERSION
index 11e8934cc31397c9d5ecb572fd9669c161ea8b2e..64f916789cda2e98d63854ada95040f09a4422c3 100644
--- a/moose-core/VERSION
+++ b/moose-core/VERSION
@@ -1 +1 @@
-3.1.1-71-g67012a1
\ No newline at end of file
+3.1.1-72-g42f15c9
\ No newline at end of file