diff --git a/components/homme/cmake/machineFiles/cori-haswell.cmake b/components/homme/cmake/machineFiles/cori-haswell.cmake
index a9aa03490dad..a9c679d4401d 100644
--- a/components/homme/cmake/machineFiles/cori-haswell.cmake
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 #ZLIB_DIR=/global/common/cori/software/zlib/1.2.8/hsw/intel
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diff --git a/components/homme/cmake/machineFiles/cori-knl.cmake b/components/homme/cmake/machineFiles/cori-knl.cmake
index 45de24bedd9c..c91d2b0e62dd 100644
--- a/components/homme/cmake/machineFiles/cori-knl.cmake
+++ b/components/homme/cmake/machineFiles/cori-knl.cmake
@@ -8,8 +8,11 @@ SET (CMAKE_C_COMPILER cc CACHE FILEPATH "")
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 SET (NETCDF_DIR $ENV{NETCDF_DIR} CACHE FILEPATH "")
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 SET (HDF5_DIR $ENV{HDF5_DIR} CACHE FILEPATH "")
 
+SET (MKLROOT $ENV{MKLROOT} CACHE FILEPATH "")
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 #ZLIB_DIR=/global/common/cori/software/zlib/1.2.8/hsw/intel
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 SET (ZLIB_LIBRARY ${ZLIB_DIR}/lib/libz.a CACHE FILEPATH "")
diff --git a/components/homme/cmake/machineFiles/edison.cmake b/components/homme/cmake/machineFiles/edison.cmake
index d0e18f39958f..45a3fd1140db 100644
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