diff --git a/packages/lang/llvm/package.mk b/packages/lang/llvm/package.mk
index 46457c92c2..68c68f7bc0 100644
--- a/packages/lang/llvm/package.mk
+++ b/packages/lang/llvm/package.mk
@@ -60,7 +60,8 @@ makeinstall_host() {
   cp -a bin/llvm-tblgen $ROOT/$TOOLCHAIN/bin
 }
 
-PKG_CMAKE_OPTS_TARGET="-DCMAKE_C_FLAGS="$CFLAGS" \
+PKG_CMAKE_OPTS_TARGET="-DCMAKE_BUILD_TYPE=MinSizeRel \
+                       -DCMAKE_C_FLAGS="$CFLAGS" \
                        -DCMAKE_CXX_FLAGS="$CXXFLAGS" \
                        -DLLVM_INCLUDE_TOOLS=ON \
                        -DLLVM_BUILD_TOOLS=OFF \