diff --git a/packages/lang/llvm/package.mk b/packages/lang/llvm/package.mk
index b79a8bda01..98879ce7db 100644
--- a/packages/lang/llvm/package.mk
+++ b/packages/lang/llvm/package.mk
@@ -50,7 +50,8 @@ PKG_CMAKE_OPTS_COMMON="-DLLVM_INCLUDE_TOOLS=ON \
                        -DLLVM_BUILD_LLVM_DYLIB=ON \
                        -DLLVM_LINK_LLVM_DYLIB=ON \
                        -DLLVM_OPTIMIZED_TABLEGEN=ON \
-                       -DLLVM_APPEND_VC_REV=OFF"
+                       -DLLVM_APPEND_VC_REV=OFF \
+                       -DLLVM_ENABLE_RTTI=ON"
 
 PKG_CMAKE_OPTS_HOST="$PKG_CMAKE_OPTS_COMMON \
                      -DCMAKE_INSTALL_RPATH=$TOOLCHAIN/lib"