diff --git a/Scripts/developer_scripts/run_testsuite_with_ctest b/Scripts/developer_scripts/run_testsuite_with_ctest
index 3e13edc6a7e..723b3938d2c 100644
--- a/Scripts/developer_scripts/run_testsuite_with_ctest
+++ b/Scripts/developer_scripts/run_testsuite_with_ctest
@@ -181,7 +181,7 @@ setup_dirs()
 
     # MSVC2015 does not support C++17
     if [ "${CGAL_RELEASE_ID}" \> "CGAL-6.0" ]; then
-      if [ "PLATFORM" = "MSVC2015-Release-64bits" ]; then
+      if [ "${PLATFORM}" = "MSVC2015-Release-64bits" ]; then
         continue
       fi
     fi