diff --git a/generate/run b/generate/run
index bb0d8d8d..76a1011d 100755
--- a/generate/run
+++ b/generate/run
@@ -83,7 +83,7 @@ cd generate || Fail "Cannot change back to generate directory."
 echo ""
 echo "Building C source code for 'generate' program."
 CPPCHECK_OPTIONS=-I . -I novas -I vsop -I top2013 --error-exitcode=9 --enable=all --suppress=variableScope --suppress=unusedStructMember --suppress=missingIncludeSystem --suppress=unusedFunction
-if [[ "${OS_NAME}" == "macos-latest" ]]; then
+if [[ "${OS_NAME}" == "macOS" ]]; then
     CPPCHECK_OPTIONS += --check-level=exhaustive
 fi
 cppcheck ${CPPCHECK_OPTIONS} generate.c earth.c astro_vector.c chebyshev.c codegen.c ephfile.c vsop/vsop.c top2013/top2013.c || exit 1