diff --git a/tests/lcit/CMakeLists.txt b/tests/lcit/CMakeLists.txt
index a6d11ed4..7b54dacb 100644
--- a/tests/lcit/CMakeLists.txt
+++ b/tests/lcit/CMakeLists.txt
@@ -30,8 +30,8 @@ add_lci_tests(
   "${SRUN_EXE} -n 2 ${SRUN_EXTRA_ARG} [TARGET] --op 1s --nthreads 4 --nsteps 10"
   "${SRUN_EXE} -n 2 ${SRUN_EXTRA_ARG} [TARGET] --op 1m --nthreads 4 --nsteps 10"
   "${SRUN_EXE} -n 2 ${SRUN_EXTRA_ARG} [TARGET] --op 1l --nthreads 4 --nsteps 10"
-  "${SRUN_EXE} -n 2 ${SRUN_EXTRA_ARG} [TARGET] --op 2l --min-msg-size=2000000000 --max-msg-size=8000000000 --nsteps 1"
-  "${SRUN_EXE} -n 2 ${SRUN_EXTRA_ARG} [TARGET] --op 1l --min-msg-size=2000000000 --max-msg-size=8000000000 --nsteps 1"
+  "export LCI_MAX_SINGLE_MESSAGE_SIZE=1000 ; ${SRUN_EXE} -n 2 ${SRUN_EXTRA_ARG} [TARGET] --op 2l --min-msg-size=1000 --max-msg-size=4001 --nsteps 1"
+  "export LCI_MAX_SINGLE_MESSAGE_SIZE=1000 ; ${SRUN_EXE} -n 2 ${SRUN_EXTRA_ARG} [TARGET] --op 1l --min-msg-size=1000 --max-msg-size=4001 --nsteps 1"
 )
 
 add_lci_tests(