diff --git a/experiment/frontier/env.sh b/experiment/frontier/env.sh
index c7c0d6c..de69147 100644
--- a/experiment/frontier/env.sh
+++ b/experiment/frontier/env.sh
@@ -5,6 +5,8 @@ module swap $LMOD_FAMILY_PRGENV PrgEnv-gnu
 module load rocm/6.0.0
 module unload darshan-runtime
 
+export CC=cc CXX=CC HOST_CC=gcc HOST_CXX=g++
+
 export USE_HIP=1
 export CONDUIT=ofi-slingshot11
 
diff --git a/experiment/perlmutter/env.sh b/experiment/perlmutter/env.sh
index a07dfec..b099a1f 100644
--- a/experiment/perlmutter/env.sh
+++ b/experiment/perlmutter/env.sh
@@ -5,6 +5,8 @@ module load PrgEnv-gnu
 module load cpe-cuda
 module load cudatoolkit
 
+export CC=cc CXX=CC HOST_CC=gcc HOST_CXX=g++
+
 export USE_CUDA=1
 export CONDUIT=ofi-slingshot11
 
diff --git a/experiment/sapling/env.sh b/experiment/sapling/env.sh
index 8d56e82..ff2f9c4 100644
--- a/experiment/sapling/env.sh
+++ b/experiment/sapling/env.sh
@@ -3,6 +3,8 @@ export THREADS=20
 
 module load cuda
 
+export CC=gcc CXX=g++
+
 export USE_CUDA=1
 export CONDUIT=ibv
 
diff --git a/experiment/setup.sh b/experiment/setup.sh
index 0d5e205..cb6e6ba 100755
--- a/experiment/setup.sh
+++ b/experiment/setup.sh
@@ -23,7 +23,7 @@ fi
 
 pushd legion/language
 # setup_env.py pins everything now, so don't need to pin explicitly here
-DEBUG=0 CC=cc CXX=CC HOST_CC=gcc HOST_CXX=g++ USE_GASNET=1 REALM_NETWORKS=gasnetex ./scripts/setup_env.py --cmake --extra="-DCMAKE_INSTALL_PREFIX=$PWD/../install" --install -j${THREADS:-16}
+DEBUG=0 USE_GASNET=1 REALM_NETWORKS=gasnetex ./scripts/setup_env.py --cmake --extra="-DCMAKE_INSTALL_PREFIX=$PWD/../install" --install -j${THREADS:-16}
 popd
 
 extra_cxxflags=