diff --git a/thirdparty/build-thirdparty.sh b/thirdparty/build-thirdparty.sh
index 6be4239a449904..89dcac280ac9b9 100755
--- a/thirdparty/build-thirdparty.sh
+++ b/thirdparty/build-thirdparty.sh
@@ -600,7 +600,7 @@ build_rocksdb() {
 
     CFLAGS= \
     EXTRA_CFLAGS="-I ${TP_INCLUDE_DIR} -I ${TP_INCLUDE_DIR}/snappy -I ${TP_INCLUDE_DIR}/lz4 -L${TP_LIB_DIR} ${FILE_PREFIX_MAP_OPTION}" \
-    EXTRA_CXXFLAGS=$(echo_opts_gcc14 -Wno-error=redundant-move)" -fPIC -Wno-deprecated-copy -Wno-stringop-truncation -Wno-pessimizing-move -I ${TP_INCLUDE_DIR} -I ${TP_INCLUDE_DIR}/snappy ${FILE_PREFIX_MAP_OPTION}" \
+    EXTRA_CXXFLAGS=$(echo_gt_gcc14 -Wno-error=redundant-move)" -fPIC -Wno-deprecated-copy -Wno-stringop-truncation -Wno-pessimizing-move -I ${TP_INCLUDE_DIR} -I ${TP_INCLUDE_DIR}/snappy ${FILE_PREFIX_MAP_OPTION}" \
     EXTRA_LDFLAGS="-static-libstdc++ -static-libgcc" \
     PORTABLE=1 make USE_RTTI=1 -j$PARALLEL static_lib
 
@@ -665,8 +665,8 @@ build_flatbuffers() {
   cd $BUILD_DIR
   rm -rf CMakeCache.txt CMakeFiles/
 
-  export CXXFLAGS="-O3 -fno-omit-frame-pointer -fPIC -g " $(echo_opts_gcc14 "-Wno-error=stringop-overread")
-  export CPPFLAGS="-O3 -fno-omit-frame-pointer -fPIC -g " $(echo_opts_gcc14 "-Wno-error=stringop-overread")
+  export CXXFLAGS="-O3 -fno-omit-frame-pointer -fPIC -g " $(echo_gt_gcc14 "-Wno-error=stringop-overread")
+  export CPPFLAGS="-O3 -fno-omit-frame-pointer -fPIC -g " $(echo_gt_gcc14 "-Wno-error=stringop-overread")
 
   LDFLAGS="-static-libstdc++ -static-libgcc" \
   ${CMAKE_CMD} .. -G "${CMAKE_GENERATOR}" -DFLATBUFFERS_BUILD_TESTS=OFF