diff --git a/Build/Scripts/build_thirdparty_libs.sh b/Build/Scripts/build_thirdparty_libs.sh
index 3a8e6c4aae8..bf30aee8a37 100755
--- a/Build/Scripts/build_thirdparty_libs.sh
+++ b/Build/Scripts/build_thirdparty_libs.sh
@@ -26,10 +26,12 @@ while [[ $# -gt 0 ]]; do
             shift
             ;;
         --clean-hypre)
+            clean_fds=true
             clean_hypre=true  # Set the flag to true when --clean-hypre is used
             shift
             ;;
         --clean-sundials)
+            clean_fds=true
             clean_sundials=true
             shift
             ;;