diff --git a/Modules/FindMatlab.cmake b/Modules/FindMatlab.cmake
index 7ecc13407..eae158535 100644
--- a/Modules/FindMatlab.cmake
+++ b/Modules/FindMatlab.cmake
@@ -794,7 +794,7 @@ function(matlab_add_unit_test)
             "-Dworking_directory=${${prefix}_WORKING_DIRECTORY}"
             "-DMatlab_PROGRAM=${Matlab_MAIN_PROGRAM}"
             "-Dno_unittest_framework=${${prefix}_NO_UNITTEST_FRAMEWORK}"
-            "-DMatlab_ADDITIONNAL_STARTUP_OPTIONS=${${prefix}_MATLAB_ADDITIONAL_STARTUP_OPTIONS}"
+            "-DMatlab_ADDITIONAL_STARTUP_OPTIONS=${${prefix}_MATLAB_ADDITIONAL_STARTUP_OPTIONS}"
             "-Dunittest_file_to_run=${${prefix}_UNITTEST_FILE}"
             "-Dcustom_Matlab_test_command=${${prefix}_CUSTOM_TEST_COMMAND}"
             "-Dcmd_to_run_before_test=${${prefix}_UNITTEST_PRECOMMAND}"
diff --git a/Modules/MatlabTestsRedirect.cmake b/Modules/MatlabTestsRedirect.cmake
index a0c662156..64d580db6 100644
--- a/Modules/MatlabTestsRedirect.cmake
+++ b/Modules/MatlabTestsRedirect.cmake
@@ -10,14 +10,14 @@
 #   -Dadditional_paths=""
 #   -Dno_unittest_framework=""
 #   -DMatlab_PROGRAM=matlab_exe_location
-#   -DMatlab_ADDITIONNAL_STARTUP_OPTIONS=""
+#   -DMatlab_ADDITIONAL_STARTUP_OPTIONS=""
 #   -Dtest_name=name_of_the_test
 #   -Dcustom_Matlab_test_command=""
 #   -Dcmd_to_run_before_test=""
 #   -Dunittest_file_to_run
 #   -P FindMatlab_TestsRedirect.cmake
 
-set(Matlab_UNIT_TESTS_CMD -nosplash -nodesktop -nodisplay ${Matlab_ADDITIONNAL_STARTUP_OPTIONS})
+set(Matlab_UNIT_TESTS_CMD -nosplash -nodesktop -nodisplay ${Matlab_ADDITIONAL_STARTUP_OPTIONS})
 if(WIN32)
   set(Matlab_UNIT_TESTS_CMD ${Matlab_UNIT_TESTS_CMD} -wait)
 endif()