diff --git a/scripts/build_gdl.sh b/scripts/build_gdl.sh
index e14b38cac..0c5713c0d 100755
--- a/scripts/build_gdl.sh
+++ b/scripts/build_gdl.sh
@@ -447,10 +447,14 @@ function configure_gdl {
     if [[ ${BUILD_OS} == "macOS" ]]; then
         if [[ ${Platform} == "arm64" ]]; then
             export LIBRARY_PATH=$LIBRARY_PATH:/opt/homebrew/opt/llvm/lib
-            CMAKE_ADDITIONAL_ARGS=( "-DMPI=OFF -DREADLINEDIR=/opt/homebrew/opt/readline")
+            CMAKE_ADDITIONAL_ARGS=( "-DMPI=OFF -DREADLINEDIR=/opt/homebrew/opt/readline"
+                                    "-DCMAKE_CXX_COMPILER=/usr/bin/clang++"
+                                    "-DCMAKE_C_COMPILER=/usr/bin/clang" ) 
         else
             export LIBRARY_PATH=$LIBRARY_PATH:/usr/local/opt/llvm/lib
-            CMAKE_ADDITIONAL_ARGS=( "-DMPI=OFF -DREADLINEDIR=/usr/local/opt/readline")
+            CMAKE_ADDITIONAL_ARGS=( "-DMPI=OFF -DREADLINEDIR=/usr/local/opt/readline"
+                                    "-DCMAKE_CXX_COMPILER=/usr/bin/clang++"
+                                    "-DCMAKE_C_COMPILER=/usr/bin/clang" )
        fi
     fi