diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 0f0325152..5b0838d5a 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -1142,8 +1142,9 @@ if(iodaconv_bufr_ENABLED)
 
   ecbuild_add_test( TARGET  test_iodaconv_bufr_satwind_Insat_wmo_bufr
                     TYPE    SCRIPT
-                    COMMAND ${CMAKE_BINARY_DIR}/bin/iodaconv_comp.sh
-                    ARGS    netcdf
+                    COMMAND bash
+                    ARGS    ${CMAKE_BINARY_DIR}/bin/iodaconv_comp.sh
+                            netcdf
                     "${CMAKE_BINARY_DIR}/bin/bufr2ioda.x testinput/satwind_Insat_wmoBUFR2ioda.yaml"
                     satwind_Insat.nc ${IODA_CONV_COMP_TOL_ZERO}
                     DEPENDS bufr2ioda.x )
@@ -1442,8 +1443,9 @@ ecbuild_add_test( TARGET  test_${PROJECT_NAME}_smap9km_ssm
 ecbuild_add_test( TARGET  test_${PROJECT_NAME}_land_owp_snow_obs_dup_thin
                   TYPE    SCRIPT
                   ENVIRONMENT "PYTHONPATH=${IODACONV_PYTHONPATH}"
-                  COMMAND ${CMAKE_BINARY_DIR}/bin/iodaconv_comp.sh
-                  ARGS    netcdf
+                  COMMAND bash
+                  ARGS    ${CMAKE_BINARY_DIR}/bin/iodaconv_comp.sh
+                          netcdf
                           "${Python3_EXECUTABLE} ${CMAKE_BINARY_DIR}/bin/owp_snow_obs.py
                           -i testinput/owp_snow_obs.csv
                           -o testrun/owp_snow_obs_dup_thin_err_fn.nc