diff --git a/build.sh b/build.sh
index d6ef83596bdeb000e4a818fe8bd938b145659bef..694b15520d03d336476d4fed14d9f462f58f1914 100755
--- a/build.sh
+++ b/build.sh
@@ -149,7 +149,7 @@ while getopts :aAb:ceEhiI:j:orstvfX: optchr; do
 done
 
 CMAKE_OPTIONS="-DCMAKE_INSTALL_PREFIX=$install_prefix \
-               -DCMAKE_BUILD_TYPE=$buildtype \
+               -DCMAKE_BUILD_TYPE=relwithdebinfo \
                -DCMAKE_C_COMPILER=$C_COMPILER_PATH \
                -DCMAKE_CXX_COMPILER=$CXX_COMPILER_PATH \
                -DLLVM_TARGETS_TO_BUILD=$backends "